Why Fermented Soy is Better Than Regular Soy

February 17, 2021

Soy is a staple in many plant-based diets, but not all soy is created equal. While both fermented and unfermented soy provide valuable nutrients, fermented soy offers unique health advantages due to its enhanced bioavailability, probiotic content, and reduced anti-nutrients.


Let’s break down why fermented soy is the superior choice for health-conscious consumers.



1. Enhanced Nutrient Absorption

Fermentation breaks down compounds like phytic acid, which normally inhibit the absorption of minerals such as iron, calcium, and zinc.

  • Unfermented soy (like soy milk or tofu) contains higher levels of these anti-nutrients.
  • Fermented soy (like tempeh and miso) makes minerals more bioavailable for absorption.



2. Superior Isoflavone Activity

Soy isoflavones (genistein and daidzein) are more bioactive and better absorbed after fermentation.

  • Fermentation converts isoflavone glycosides into aglycones, which are easier for the body to utilize.
  • This makes fermented soy more effective in supporting hormonal balance, bone density, and heart health.



3. Probiotic Benefits

Fermented soy contains beneficial bacteria like Lactobacillus and Bacillus subtilis, which:

  • Support gut health and microbiome diversity
  • Reduce inflammation via short-chain fatty acid production
  • May improve digestion and immune function

Unfermented soy lacks these probiotic strains.



4. Enzyme Production and Digestibility

During fermentation, soy proteins are broken down into smaller peptides and amino acids, which are easier to digest.

  • This process also produces enzymes like nattokinase (in natto), which support cardiovascular health.
  • Unfermented soy may cause more bloating or GI distress due to intact oligosaccharides and proteins.



5. Functional Food Status

Fermented soy isn’t just nutrition – it’s functional medicine. It delivers:

  • Vitamin K2: Supports bone and cardiovascular health (high in natto)
  • Bioactive peptides: Show antioxidant and anti-inflammatory activity
  • Improved hormonal modulation: Especially important during menopause or for hormone-related health issues


Nutrient/Benefit Unfermented Soy Fermented Soy
Vitamin K2 Minimal High (in natto)
Probiotics None Present
Isoflavone bioactivity Lower Higher
Digestibility Moderate Improved
Anti-nutrients High Reduced

Final Thoughts


Fermented soy offers all the core benefits of soy — protein, fiber, isoflavones — plus additional therapeutic compounds thanks to microbial transformation. It’s a smart upgrade for anyone seeking better gut health, hormone balance, and overall wellness. Nitrogen fermentation takes these benefits to an whole new level.


Opt for fermented soy when possible and choose organic, non-GMO sources to maximize benefits.



References:

  • Messina M. (2010). Insights gained from 20 years of soy research. J Nutr, 140(12): 2289S–2295S.
  • Choi YJ et al. (2012). Fermentation enhances isoflavone bioactivity in soy. Nutr Res Pract, 6(6): 526–533.
  • Kikuchi-Hayakawa H et al. (2015). Probiotic properties of Bacillus subtilis in natto. Benef Microbes, 6(3): 409–417.


March 31, 2025
Exploring Natural and Integrative Cancer Treatments: Beyond Conventional Chemotherapy Cancer care today is more dynamic than ever before. While conventional treatments like chemotherapy, radiation, and surgery remain the frontline treatments in many cases, a growing number of patients and practitioners are turning to complementary, alternative, and integrative approaches. These therapies may be used to support the body’s healing processes, alleviate side effects of conventional treatments, and improve overall quality of life. In this expansive article, we discuss a broad spectrum of natural cancer treatments. It is not solely about replacing chemotherapy. The Landscape of Cancer Therapies Before exploring specific treatments, it is critical to understand how cancer therapies are categorized: Conventional Treatments: These include surgery, chemotherapy, radiation therapy, and immunotherapy. They are usually the primary interventions prescribed by oncologists. Complementary Therapies: These are non-mainstream practices used alongside conventional treatments to help manage symptoms and improve quality of life. Examples include acupuncture and meditation. Alternative Therapies: These are used in place of standard treatments. Although some patients may choose these, many experts caution against replacing evidence-based therapies with unproven alternatives. Integrative Medicine: This approach combines conventional treatment with complementary therapies. It’s an effort to treat the whole person—physically, mentally, and emotionally. Holistic Therapies: Focused on the overall well-being of a person, these treatments address lifestyle, nutrition, stress management, and spiritual health in addition to physical health. Each approach holds promise and comes with its own set of challenges, especially when considering adjunct treatments to support and enhance the effects of chemotherapy. Nutritional and Fermented Therapeutics Haelan 951 – Nitrogen Fermented Soy Overview: Haelan 951 is a fermented soy beverage (clearly we like soy here) that has garnered attention among integrative oncologists and alternative medicine proponents. Derived from the nitrogen fermentation of a unique soy, it is rich in isoflavones, saponins, and a host of other phytonutrients. Its formulation is designed to provide nutritional support and may offer anticancer properties. Potential Benefits: Anticancer Activity: Preliminary laboratory studies indicate that certain compounds in Haelan 951 may hinder cancer cell growth and induce apoptosis (a form of programmed cell death). These findings, although preclinical, are suggestive of its potential role in cancer support. Nutritional Support: It supplies essential nutrients including amino acids, vitamins, and minerals, which are crucial during rigorous conventional treatments. Adjunct to Chemotherapy: Many patients use Haelan 951 alongside chemotherapy to bolster immunity, overall health, mitigate side effects, and improve outcomes. Cachexia: Originally studies for rapid weight loss and muscle wasting, there is strong support for its use in gaining and maintaining muscle mass. Including insurance reimbursement potential. Considerations: Taste and Cost: Despite its benefits, Haelan 951 is often criticized for its bitter taste. Additionally, it comes with a relatively high price point compared to other nutritional supplements. Limited Clinical Trials: Most of the evidence stems from laboratory studies and anecdotal clinical support rather than large-scale, placebo-controlled trials. Haelan 951 is classified as a food and therefore will likely not undergo these studies. Fermented Wheat Germ Extract (FWGE) Overview: Fermented wheat germ extract, widely known by its commercial name Avemar, is derived from wheat germ fermented with baker’s yeast. It has been used in countries like Hungary as a complementary nutritional therapy for cancer patients. Potential Benefits: Anticancer and Immunomodulatory Effects: In vitro studies have shown that FWGE may inhibit tumor cell proliferation, reduce metastasis, and stimulate the immune system. Combination Therapy: FWGE may have a synergistic effect when used alongside conventional treatments, potentially enhancing the efficacy of drugs such as tamoxifen and cisplatin. Considerations: Evidence Base: While preclinical research is promising, large, randomized clinical trials in humans are still scarce. Hormone-Sensitive Cancers: Those with hormone-sensitive tumors need to consult their healthcare providers before using FWGE. Repurposed Pharmaceuticals - Anticancer Potential Fenbendazole Overview: Originally formulated as an antiparasitic drug in veterinary medicine, fenbendazole belongs to the benzimidazole class. Its anticancer properties have recently garnered attention, especially in integrative oncology circles. Potential Benefits: Disruption of Cancer Cell Metabolism: Fenbendazole has been observed in laboratory settings to inhibit the formation of microtubules, which are vital for cancer cell division. Synergistic Use with Adjunct Compounds: Some protocols combine fenbendazole with natural agents such as vitamin E, curcumin, and cannabidiol (CBD) to enhance anticancer effects. Considerations: Regulatory and Clinical Challenges: Fenbendazole is not approved for human cancer treatment. Its use is off-label and largely experimental. Need for Caution: Without robust clinical trial data, using fenbendazole remains controversial and should only be considered under careful medical supervision. Ivermectin Overview: Ivermectin, another repurposed antiparasitic medication, has also been explored for its anticancer properties. Researchers are investigating its anti-inflammatory and antitumor effects. Potential Benefits: Antitumor Properties: Preliminary research suggests ivermectin may disrupt cancer cell signaling pathways and reduce proliferation. Potential Synergy with Other Therapies: When used in combination with other natural compounds, it may enhance cancer cell death. Considerations: Preliminary Evidence: Most findings are from cell culture and animal studies rather than robust human trials. Off-Label Use: Similar to fenbendazole, ivermectin is not approved for cancer treatment, and its use should be strictly monitored by medical professionals. Botanical and Herbal Approaches Mistletoe Therapy Overview: Mistletoe extract has a long history in European integrative oncology and is commonly used in countries like Germany and Switzerland. It is administered via subcutaneous injections and is believed to stimulate the immune system. Potential Benefits: Improved Quality of Life: Mistletoe therapy has been linked to reductions in chemotherapy-induced side effects like fatigue, nausea, and pain. Immune System Activation: The extract may enhance immune function, potentially helping the body to fight cancer more effectively. Considerations: Variable Efficacy: While many patients report improved well-being, clinical outcomes have been mixed, and large-scale studies yield varied results. Adjunct Role: Mistletoe is most effective when used in combination with conventional treatments rather than as a standalone therapy. Cannabis and Cannabinoids Overview: Cannabis and its derivatives, including cannabidiol (CBD) and tetrahydrocannabinol (THC), are gaining popularity as adjunct therapies for cancer patients. They are used primarily for symptom management. Potential Benefits: Symptom Relief: Cannabis is known for its ability to alleviate pain, reduce nausea, and stimulate appetite—benefits that are particularly valuable during chemotherapy. Potential Anticancer Properties: Some studies suggest that cannabinoids may inhibit tumor growth and metastasis, although these findings are mostly preclinical. Considerations: Legal and Regulatory Concerns: The use of cannabis is subject to varying legal restrictions depending on the region. Side Effects: Psychoactive effects and other side effects may occur, and optimal dosing is still under research. Dietary Therapies and Detoxification Programs A number of dietary approaches and detoxification programs are promoted as natural methods to fight cancer or support conventional treatments. Many of these alternatives are featured on The Truth About Cancer website and include: The Budwig Diet Overview: Developed by Dr. Johanna Budwig in the mid-20th century, the Budwig Diet emphasizes the consumption of flaxseed oil mixed with cottage cheese (or another source of protein rich in sulfur amino acids) to improve cell membrane function and cellular energy production. Potential Benefits: Improved Cellular Function: The diet is designed to restore the proper electrical charge of cells, thereby potentially improving their resistance to cancerous changes. Enhanced Omega-3 Intake: Flaxseed oil is rich in omega-3 fatty acids, which may help reduce inflammation. Considerations: Rigidity of the Diet: The Budwig Diet can be difficult to adhere to over the long term due to its strict dietary restrictions. Scientific Evidence: While there are many anecdotal reports, controlled clinical data remains limited. Coffee Enemas Overview: Coffee enemas are a detoxification method promoted for stimulating liver function and improving bile flow. Proponents believe that the caffeine and other components in coffee can help the body eliminate toxins more effectively. Potential Benefits: Detoxification: Advocates argue that coffee enemas enhance the body’s natural detoxification pathways. Liver Support: The procedure is believed to stimulate the liver’s production of bile, a critical substance for digestion and detoxification. Considerations: Medical Concerns: Coffee enemas can pose risks if not performed correctly, including electrolyte imbalances or infections. Lack of Robust Evidence: While used widely in alternative medicine circles, rigorous scientific studies validating their benefits are limited. Gerson Therapy Overview: Gerson Therapy is an intensive nutritional regimen that includes a specialized organic, plant-based diet, raw juices, and detoxification methods such as coffee enemas. Developed in the 1920s by Dr. Max Gerson, the therapy is designed to restore the body’s natural ability to heal itself. Potential Benefits: Holistic Detoxification: The comprehensive approach aims to cleanse the body of toxins. Immune System Support: The nutrient-dense diet is thought to boost immune function and overall health. Considerations: Time and Commitment: Gerson Therapy requires a significant lifestyle change and strict adherence to dietary guidelines. Controversial Efficacy: Despite numerous personal testimonies, clinical acceptance remains low due to a lack of conclusive evidence. Ozone Therapy Overview: Ozone therapy involves introducing ozone (a form of oxygen) into the body to stimulate the immune system and improve oxygenation at the cellular level. It is employed in various forms, including autohemotherapy and insufflation. Potential Benefits: Immune Modulation: Ozone therapy is thought to enhance the body’s antiviral and anticancer defenses. Enhanced Oxygen Utilization: Improved oxygenation may help stressed tissues and support overall metabolic function. Considerations: Safety Concerns: Improper administration of ozone can be harmful, making it essential that the therapy is performed by experienced practitioners. Need for Further Research: While promising in some studies, the evidence base for ozone therapy’s role in cancer treatment is still emerging. High-Dose Vitamin C Therapy Overview: Administering high doses of vitamin C—often via intravenous infusion—is another alternative therapy that has gained popularity. Vitamin C is believed to exert a pro-oxidant effect at high concentrations, selectively damaging cancer cells. Potential Benefits: Enhanced Immune Function: Vitamin C is essential for a robust immune response. Adjunct to Conventional Therapy: Many patients report reduced side effects from chemotherapy when vitamin C is incorporated into their treatment plan. Considerations: Conflicting Evidence: Studies on high-dose vitamin C have shown mixed results, and its definitive anticancer benefits remain a subject of research. Administration Protocol: Intravenous therapy must be conducted in a controlled, medical setting to avoid complications. Alkaline Diets Overview: The theory behind alkaline diets is that cancer thrives in an acidic environment. Advocates recommend consuming foods that alkalize the body—including fruits, vegetables, and nuts—while avoiding acid-forming foods like processed meats and sugars. Potential Benefits: pH Balance: An alkaline diet may help maintain a healthier pH balance in the body. Overall Health Improvement: With an emphasis on whole, nutrient-dense foods, such diets can improve overall health and energy levels. Considerations: Simplistic Theory: The idea that pH alone drives cancer growth is oversimplified; however, a nutrient-rich diet remains beneficial regardless. Compliance Challenges: Strict dietary regimes can be hard to adhere to in the long term. Additional Complementary Therapies Apart from the dietary and repurposed pharmaceutical options discussed above, The Truth About Cancer website highlights several other therapies that patients have considered as natural alternatives or as supportive adjuncts to chemotherapy. Enzyme Therapy Overview: Enzyme therapy involves using enzymes (naturally occurring proteins that facilitate biochemical reactions) to help the body break down and remove toxins. Some practitioners prescribe specific enzyme formulations with the aim of limiting tumor growth. Potential Benefits: Enhanced Detoxification: Enzymes can accelerate the breakdown and elimination of metabolic waste products. Immune Support: Some enzymes have been shown to stimulate immune responses in laboratory settings. Considerations: Variable Potency: Enzyme preparations can vary widely in terms of concentration and purity. Research Gaps: While promising, enzyme therapy is not yet backed by large-scale clinical studies. Antineoplaston Therapy Overview: Antineoplastons are synthetic compounds that were once heralded as a breakthrough in cancer treatment. Originally developed by Dr. Stanislaw Burzynski, these compounds are thought to regulate gene expression and induce apoptosis in cancer cells. Potential Benefits: Targeted Action: Proponents argue that antineoplastons specifically target cancer cells while leaving healthy cells relatively unharmed. Immune Stimulation: Some studies indicate a potential immune-boosting effect. Considerations: Controversial Data: The therapy has been the subject of heated debate due to inconsistent clinical results and regulatory challenges. Accessibility Issues: Antineoplaston therapy is not widely available and remains controversial in mainstream medical circles. Detoxification and Cleansing Programs Overview: Detoxification strategies—including fasting protocols, juice cleanses, and other detox regimens—are frequently recommended to help the body eliminate toxins that may contribute to cancer development. These programs are designed to reset metabolic processes and boost immune function. Potential Benefits: Toxin Elimination: A well-structured detox program may help reduce the overall toxic load in the body. Increased Energy: Many people report feeling rejuvenated after a period of cleansing. Synergistic Effects: Detox regimens can improve the body’s response to other nutritional and medicinal interventions. Considerations: Nutritional Balance: Extreme fasting or detoxification can lead to nutrient deficiencies if not carefully managed. Medical Supervision: It is advisable to consult with a healthcare provider before beginning any rigorous detox program, particularly for cancer patients. Mind-Body Techniques Overview: Mind-body techniques play an essential role in integrative cancer care. Methods such as meditation, guided imagery, yoga, and tai chi are not only effective for stress reduction but may also contribute to improved treatment outcomes. Potential Benefits: Stress Reduction: Chronic stress can impair immune function. Mind-body practices help reduce stress hormones and enhance overall mental well-being. Improved Quality of Life: A patient’s mental and emotional state is crucial in coping with the challenges of cancer therapy. Enhanced Treatment Adherence: Reducing anxiety and depression can lead to better adherence to both conventional and alternative treatment regimens. Considerations: Complementary Role: These techniques should be used alongside conventional treatments—not in place of them. Regular Practice Required: Consistent practice is necessary to achieve lasting benefits. Integrative Oncology – Combining the Best of Both Worlds Integrative oncology represents a patient-centered approach that blends conventional cancer treatments with evidence-based natural and complementary therapies. This model of care acknowledges that while chemotherapy and radiation are critical in many cases, their side effects can be severe. The goal is to mitigate these side effects, improve quality of life, and possibly enhance the effectiveness of conventional treatments through supportive therapies such as: Adjunct Nutritional Supplements: Products like Haelan 951 and fermented wheat germ extract, which offer a rich array of phytonutrients and may help combat chemotherapy-induced weakness. Repurposed Drugs: Agents such as fenbendazole and ivermectin, albeit experimental, are being explored for their potential to disrupt cancer cell processes. Herbal and Botanical Agents: From mistletoe therapy to cannabis derivatives, these treatments aim to harness the natural healing properties of plants to relieve symptoms and support the body’s defenses. Detox and Dietary Interventions: The Budwig Diet, alkaline diets, and detox programs are all designed to create an internal environment less conducive to cancer cell growth. Mind-Body Interventions: Recognizing that cancer is as much an emotional and psychological battle as it is a physical one, practices like meditation, yoga, and acupuncture play key roles in integrative care. The collaboration between conventional oncologists and integrative practitioners can lead to more personalized treatment plans that consider the whole patient. Studies have indicated that such an approach can lead to fewer side effects, improved emotional well-being, and, in some cases, better overall treatment outcomes. Comparative Analysis: Pros and Cons of Various Treatments Given the myriad of options available, patients and practitioners must weigh the advantages and disadvantages of each approach. Haelan 951 (Fermented Soy Beverage) Pros: Studies suggest anticancer properties, detox, and immune support. Recognized by some integrative oncologists as a superior adjunct treatment. Mitigated traditional treatment side effects reported. Cons: Generally expensive. Reported to have an unpleasant taste. Limited large-scale human clinical trials. Fermented Wheat Germ Extract (FWGE) Pros: Potentially inhibits tumor growth and metastasis. May enhance the effects of certain conventional therapies. Cons: Limited clinical trial data in human subjects. Requires careful use in hormone-sensitive cancers. Fenbendazole Pros: Disrupts cancer cell metabolism and mitosis. May work synergistically with other natural compounds. Growing body of studies Cons: Not approved for human cancer treatment. Largely based on experimental and anecdotal evidence. Ivermectin Pros: Demonstrates potential antitumor and anti-inflammatory properties. Could enhance cancer cell sensitivity when combined with other agents. Largely accepted as safe medication Cons: Mostly preliminary research without large-scale clinical trials. Off-label use requires strict medical oversight. Mistletoe Therapy Pros: May significantly improve quality of life by reducing chemotherapy side effects. Can stimulate the immune system. Cons: Efficacy varies between patients. Best used only as an adjunct to conventional therapies. Cannabis and Cannabinoids Pros: Effective in managing pain, nausea, and loss of appetite. Emerging evidence of potential anticancer effects. Cons: Legal status and regulatory issues vary by region. Possible side effects such as psychoactivity and dizziness. Dietary Therapies (Budwig Diet, Alkaline Diets, Detox Programs) Pros: Can improve overall nutritional status and immune function. Often lead to improvements in energy levels and general well-being. Cons: Strict dietary regimens can be hard to maintain. The scientific basis for some of these diets remains debated. Coffee Enemas Pros: May promote detoxification through liver stimulation. Provide anecdotal relief from side effects. Cons: Risk of electrolyte imbalances and other adverse reactions. Insufficient rigorous scientific evidence. Gerson Therapy Pros: Holistic approach addressing nutrition, detoxification, and overall health. Advocates report improved energy and reduced side effects. Cons: Requires an intense commitment and dramatic lifestyle changes. Lacks widespread acceptance in the conventional medical community. Ozone and High-Dose Vitamin C Therapies Pros: May boost the immune system and improve oxygen utilization. Often used to enhance the effects of conventional therapies. Cons: Both therapies require specialized medical oversight. The body of evidence for their efficacy is still emerging. Mind-Body Techniques (Meditation, Yoga, Acupuncture) Pros: Help reduce stress and improve overall quality of life. Complement traditional therapies without interfering with them. Cons: Do not directly target cancer cells. Benefits are often subjective and depend on regular practice. Enzyme, Antineoplaston, and Other Specialized Therapies Pros: Aim to directly target metabolic or genetic processes in cancer cells. Represent innovative approaches in the treatment spectrum. Cons: Many are still experimental and lack conclusive clinical evidence. Their availability and regulatory approval remain limited. The Integrative Approach – Making It Work for You Every cancer journey is unique. The integrative approach to cancer therapy is all about personalizing care. Patients are encouraged to work closely with oncologists and integrative practitioners to develop a treatment regimen that synergizes conventional therapies with complementary natural treatments. Here are some guiding principles: Open Communication: Always discuss any new therapy with your medical team. An integrative approach only works when all care providers are on the same page. Personalized Treatment Plans: Not every therapy works for every patient. What might be an excellent adjunct for one person (for example, Haelan 951) might not be suitable for another. Monitoring and Adjustment: As with any cancer treatment, continuous evaluation is key. Integration of natural therapies should be adapted based on how the patient responds. Quality and Source: When considering supplements or alternative therapies, look for high-quality products from reputable sources to ensure safety and efficacy. Adjunct, Not Replacement: While natural therapies can significantly improve quality of life and help manage side effects, they should typically be used to complement—not entirely replace—conventional treatments unless advised by a knowledgeable healthcare provider. Final Thoughts: Embracing a Comprehensive Cancer Care Plan The evolving field of cancer therapy is no longer restricted to traditional methods alone. Natural, integrative, and holistic approaches offer patients additional tools to combat cancer and improve their well-being. Whether it’s the nutritional punch of Haelan 951 (despite its high cost and challenging flavor) or the potent effects of fermented wheat germ extract, fenbendazole, ivermectin, and botanical remedies like mistletoe and cannabis, there are diverse options worth exploring. Every therapy comes with its own set of benefits and limitations. The key to success lies in a well-rounded, patient-centric approach that combines the science of modern oncology with the body’s natural healing potential. From detox diets and coffee enemas to high-dose vitamin C, ozone therapy, and even mind-body practices, each adjunct treatment has the potential to support the body during its fight against cancer. Patients who are keen on adopting any of these strategies should do so under the guidance of experienced professionals. An integrative cancer care plan is not about choosing one over the other but about designing a comprehensive strategy that addresses physical, emotional, and nutritional needs. With ongoing research and an increasing number of clinical studies validating many of these methods, the future of cancer care may very well lie in a balanced synergy between conventional treatments and natural therapies. Remember, every individual’s journey is different, and what works for one person may not for another. So, being well-informed, proactive in communication, and open to exploring multiple avenues can pave the way for more personalized and effective cancer care. Disclaimer: This article is intended for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider before making any changes to your cancer treatment or starting any new therapies. Through this detailed exploration of natural cancer treatments, we hope you gain a deeper understanding of the alternatives available—not just as complete replacements for chemotherapy but as adjunct treatments that may support, enhance, and complement conventional cancer care. By combining the strengths of traditional and natural therapies, patients can often achieve a more balanced, holistic approach to managing their health during one of life’s most challenging battles. Embracing the principles of integrative medicine may be the key to not only surviving cancer but also enhancing overall quality of life during and after treatment. Explore, discuss, and ultimately work closely with your healthcare team to craft the best approach for your personal needs.
Haelan Soy
March 31, 2025
Soy is one of the most researched plant-based foods on the planet, primarily due to its high concentration of biologically active compounds known as isoflavones . These phytoestrogens—plant-derived compounds with estrogen-like properties—have drawn considerable scientific attention for their potential roles in hormone modulation, cancer prevention, cardiovascular health, and more. In this article, we’ll explore the three key isoflavones in soy— genistein , daidzein , and equol —and how they interact with the human body, supported by 30+ years of peer-reviewed research. 1. What Are Isoflavones? Isoflavones are a subclass of flavonoids found in high concentrations in soybeans and soy-based foods. The most prominent include: Genistein Daidzein Glycitein (less studied but present) These compounds are structurally similar to human estrogen (17β-estradiol), allowing them to bind to estrogen receptors (ERs) —especially ER-beta, which is abundant in tissues like the breast, prostate, and brain. 📘 Source : PubChem: Genistein 2. Genistein: The Star Isoflavone Genistein is the most biologically active isoflavone found in soy. Its anti-cancer properties stem largely from its ability to: Inhibit angiogenesis (the formation of new blood vessels that feed tumors) Act as a tyrosine kinase inhibitor , disrupting cancer cell signaling Promote cell cycle arrest and apoptosis (cell death) in cancerous cells 🔬 Landmark Study: A pivotal 1993 study by Fotsis et al. demonstrated that genistein inhibits angiogenesis in vitro, which suggests it may help starve tumors by preventing blood vessel growth. 📖 Read the study (PNAS) 3. Daidzein: The Hormone Modulator Daidzein is the precursor to equol , a metabolite produced by gut bacteria in some individuals. While daidzein is not as potent as genistein in inhibiting cancer, it plays a key role in: Reducing menopausal symptoms Modulating immune responses Supporting bone health Its effectiveness largely depends on the body's ability to convert it into equol. 4. Equol: The Hidden Key Equol is a non-native compound; it’s created in the gut when daidzein is metabolized by specific bacterial strains. Interestingly, only 30–50% of people can produce equol, which is believed to be the most bioactive isoflavone. 🌿 Equol's benefits: Strong affinity for ER-beta receptors Associated with reduced hot flashes in menopausal women May offer protection against hormone-dependent cancers 📘 Reference: The clinical importance of equol – Setchell et al. (2002) 5. Soy Isoflavones and Cancer Research The anti-cancer role of isoflavones has been studied extensively. Key findings include: Breast cancer : Isoflavones may block estrogen from binding to receptors, reducing cancer growth risk in estrogen-sensitive tissues. Source: American Institute for Cancer Research Prostate cancer : Genistein has shown promise in slowing prostate tumor growth in preclinical studies. Study: Genistein inhibits growth of prostate cancer cells Colorectal cancer : Some data suggest genistein improves apoptosis and DNA repair mechanisms. Study: Soy and colorectal cancer risk 6. Bioavailability: Why Fermentation Matters Most isoflavones in soy exist in their glycoside forms, which must be converted into aglycones by intestinal bacteria to be absorbed. However, fermentation (as in miso, tempeh, and Haelan 951) pre-digests these compounds, enhancing their bioavailability . This is especially true in nitrogen-fermented soy products, where fermentation helps: Increase isoflavone aglycone content Boost absorption into the bloodstream Improve anti-inflammatory and antioxidant effects 📘 More on fermentation and isoflavone conversion 7. Isoflavones and Menopause Relief Numerous clinical trials suggest that isoflavones, particularly equol , can significantly reduce: Hot flashes Night sweats Mood instability A 2012 meta-analysis published in Menopause found that soy isoflavones reduce hot flash frequency by 20.6% more than placebo. 📖 Study: Meta-analysis on soy and menopause 8. The Equol Production Puzzle The ability to produce equol depends on gut microbiota, which varies based on: Diet (fiber-rich, plant-based diets increase likelihood) Genetics Antibiotic exposure This has led to emerging interest in equol supplements and probiotic approaches to support endogenous production. 📘 Gut microbiota and equol production – review 9. Isoflavones and Cardiovascular Health In 1999, the U.S. FDA approved a qualified health claim for soy protein and heart disease prevention. Isoflavones were thought to play a role in: Lowering LDL (bad) cholesterol Improving endothelial function Reducing oxidative stress in blood vessels Although the FDA later considered revoking this claim (due to mixed evidence), many recent reviews continue to support the cholesterol-lowering effect of soy. 📖 Soy protein and lipid profiles – J Nutr. 10. Risks and Misconceptions Despite robust research, soy isoflavones have been mischaracterized in the media, especially regarding: Feminization in men (debunked by multiple studies) Thyroid suppression (no effect in euthyroid individuals) Breast cancer recurrence risk (not only safe, but potentially protective) 📘 Debunking myths: American Cancer Society Conclusion: Nature’s Smart Molecules Isoflavones are among nature’s most intelligent molecules—able to modulate hormones, block cancer pathways, and improve quality of life without overstimulating the endocrine system. Their safety and versatility make them a staple in Asian diets, and increasingly, in modern integrative medicine. For those who can produce equol or consume fermented soy products, the benefits are even greater. With continued research, we may see personalized nutrition and microbiome-based therapies that amplify isoflavone effectiveness in ways we’re only beginning to understand. Further Reading & Resources NIH: Soy Isoflavones Fact Sheet https://ods.od.nih.gov/factsheets/Isoflavones-Consumer/ Linus Pauling Institute - Micronutrient Information: Soy Isoflavones https://lpi.oregonstate.edu/mic/dietary-factors/phytochemicals/soy-isoflavones NCBI: Soy Intake and Breast Cancer Outcomes https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4053092/ Haelan 951 Research Summary https://haelanhopelessnomore.com/research/
April 25, 2024
Cancer prevention is a growing focus in nutrition science, with increasing attention given to plant-based foods and their bioactive compounds. Among these, fermented soy has garnered interest due to its high content of isoflavones , peptides , and probiotics , which are believed to have anti-cancer properties.  Why Fermented Soy May Offer Cancer Protection Soybeans naturally contain compounds that can influence hormone activity and cellular health. Fermentation boosts the bioavailability and activity of these compounds: Genistein and Daidzein : Isoflavones with phytoestrogenic properties that may reduce hormone-related cancer risk. Equol : A metabolite formed from daidzein during fermentation, believed to have stronger anti-cancer effects. Fermented Peptides : Short amino acid sequences that can reduce oxidative stress and inflammation. Evidence Linking Fermented Soy to Lower Cancer Risk Breast Cancer A meta-analysis of 18 studies found that higher soy intake was associated with a 28% reduced risk of breast cancer , especially in postmenopausal women. Fermented soy showed greater protective effects than unfermented varieties. (Zhang et al., Cancer Causes & Control, 2013) Prostate Cancer A large cohort study in Japanese men linked frequent consumption of fermented soy (miso and natto) with a significantly lower incidence of prostate cancer . (Kurahashi et al., Cancer Epidemiol Biomarkers Prev, 2007) Colorectal Cancer In rodent models, fermented soy extracts were shown to inhibit colon tumor development by modulating gut microbiota and reducing inflammatory markers. (Miyoshi et al., Food Research International, 2019) How Fermentation Enhances Anti-Cancer Effects Increased Isoflavone Bioactivity : Fermentation converts isoflavones to aglycones, which are more easily absorbed and active. Gut Microbiota Modulation : Improves microbial diversity, linked to better immune surveillance and reduced cancer risk. Antioxidant and Anti-Angiogenic Activity : Fermented soy peptides have been shown to reduce oxidative DNA damage and prevent the growth of blood vessels in tumors. Best Fermented Soy Products for Cancer Prevention Miso : Rich in antioxidants and fermented isoflavones. Tempeh : High in equol-producing daidzein and prebiotic fiber. Natto : Contains potent anti-inflammatory compounds and vitamin K2. Choose organic, non-GMO, and unpasteurized products to maximize health benefits. Final Thoughts While no food can eliminate cancer risk entirely, fermented soy offers a science-backed strategy for reducing your risk —particularly for hormone-related cancers. Thanks to its unique combination of isoflavones, probiotics, and bioactive peptides, fermented soy is a functional food worth adding to your preventive nutrition plan. References: Zhang YF et al. (2013). Soy intake and breast cancer risk: a meta-analysis. Cancer Causes Control, 24(3): 531-542. Kurahashi N et al. (2007). Soy product and isoflavone consumption in relation to prostate cancer in Japanese men. Cancer Epidemiol Biomarkers Prev, 16(3): 538-545. Miyoshi N et al. (2019). Fermented soybean extract suppresses colon tumor development in a murine model. Food Res Int, 120: 161-170.
June 15, 2023
The gut is often referred to as the "second brain" for a reason—it influences digestion, immunity, mood, and even inflammation. One of the most effective ways to support your gut is by incorporating fermented foods , and fermented soy stands out for its unique combination of prebiotics, probiotics, and bioactive compounds.  What Is Fermented Soy? Fermented soy includes foods like: Tempeh : Fermented with Rhizopus oligosporus, rich in protein and fiber. Miso : Made from soybeans and koji mold (Aspergillus oryzae), used as a seasoning or broth base. Natto : Fermented with Bacillus subtilis, known for its strong flavor and powerful enzymes. These foods go beyond basic nutrition—they help balance your gut microbiome. Gut Benefits of Fermented Soy Probiotics : Live microbes in miso, natto, and tempeh help populate the gut with beneficial bacteria like Lactobacillus and Bifidobacterium. Prebiotics : Soy contains oligosaccharides that act as fuel for healthy bacteria. Bioactive Compounds : Fermentation increases the production of short-chain fatty acids (SCFAs), which promote gut lining integrity and reduce inflammation. What the Science Says A 2020 study found that regular tempeh intake significantly increased SCFA-producing bacteria , such as Faecalibacterium prausnitzii, in the gut microbiota. (Suwandi et al., Frontiers in Microbiology, 2020) Another study on miso consumption showed that unpasteurized miso improved microbial diversity and reduced markers of intestinal inflammation in adults with metabolic syndrome. (Sasaki et al., Journal of Functional Foods, 2019) Natto fermentation has been shown to support probiotic activity while delivering enzymes like nattokinase , which may aid in digestion and anti-inflammatory gut responses. How Fermentation Improves Digestibility Breakdown of Complex Sugars : Fermentation reduces raffinose and stachyose, which can cause bloating and gas. Reduction of Anti-Nutrients : Phytic acid and trypsin inhibitors are decreased, allowing for better absorption of minerals like zinc and magnesium. Enhanced Isoflavone Activity : Fermentation converts isoflavones into more bioavailable forms like equol, which may support gut immune health. How to Add Fermented Soy to Your Gut Health Routine Add miso paste to warm (not boiling) water for a simple gut-friendly soup. Slice tempeh into strips and pan-fry as a meat alternative. Top rice or toast with natto, mustard, and chopped scallions for a probiotic-rich meal. Aim for 3–5 servings per week , especially of unpasteurized products to retain live cultures. Final Thoughts Fermented soy is one of the most versatile and powerful gut-supporting foods available. From improving microbial diversity to enhancing digestion and reducing inflammation, the benefits are clear—and science agrees. Make fermented soy a staple in your weekly routine and give your gut the support it deserves. References: Suwandi J et al. (2020). Effects of tempeh on gut microbiota and short-chain fatty acid production. Front Microbiol, 11: 1205. Sasaki S et al. (2019). Unpasteurized miso improves gut microbiome diversity in metabolic syndrome patients. J Funct Foods, 57: 330-337.
April 17, 2023
As populations age, concerns about bone loss and fractures are on the rise. While calcium and vitamin D dominate most conversations about bone health, fermented soy is emerging as a powerful dietary ally for maintaining strong bones and preventing osteoporosis .  What Makes Fermented Soy Good for Your Bones? The fermentation of soy enhances the bioavailability of several bone-supportive nutrients, including: Vitamin K2 (menaquinone-7) : Essential for activating osteocalcin, a protein that binds calcium to bone tissue. Isoflavones (genistein and daidzein) : Phytoestrogens that help modulate bone turnover, especially in postmenopausal women. Calcium and Magnesium : Naturally present in soy and retained during fermentation. The Evidence: Fermented Soy and Bone Density A large Japanese cohort study found that older women who consumed natto regularly had significantly higher bone mineral density (BMD) and a lower risk of hip fractures . (Ikeda et al., Osteoporosis International, 2006) Vitamin K2 in fermented soy has been shown to improve BMD and reduce the risk of fractures in several clinical trials. It works by activating osteocalcin, a protein that helps bind calcium in the bone matrix. Isoflavones like genistein have estrogen-like effects, which are beneficial for maintaining bone density after menopause. A study published in The Journal of Clinical Endocrinology & Metabolism found that genistein supplementation led to increased lumbar spine BMD in postmenopausal women. (Atteritano et al., JCEM, 2007) How Does Fermentation Enhance These Benefits? Improved Absorption : Fermentation reduces phytic acid and other anti-nutrients that inhibit mineral absorption. Isoflavone Conversion : Daidzein is converted to equol, a metabolite with enhanced bone-protective properties, during fermentation. Probiotic Effects : Fermented soy may also improve gut health, which plays a role in calcium and magnesium absorption. Best Fermented Soy Products for Bone Health Natto : Highest source of natural vitamin K2; daily intake is associated with reduced fracture risk. Tempeh : Rich in magnesium, calcium, and isoflavones. Miso : Offers modest levels of isoflavones and minerals, especially when unpasteurized. How to Add Fermented Soy to Your Bone Health Plan Add natto to your morning rice or salad. Cook tempeh into stir-fries or grain bowls. Use miso as a broth base or marinade. Aim to include fermented soy 3–5 times a week for consistent nutrient intake. If you're postmenopausal or at risk for osteoporosis, natto may offer the greatest benefit. Final Thoughts Fermented soy is more than a flavorful food—it’s a functional tool in the fight against osteoporosis. By providing vitamin K2, bioavailable isoflavones, and bone-friendly minerals, fermented soy supports the skeletal system naturally and effectively. Incorporating it into your routine could help you build and preserve stronger bones for life. References: Ikeda Y et al. (2006). Natto and bone health: associations between fermented soy intake and bone mineral density in Japanese women. Osteoporosis International, 17(9):1512–1519. Atteritano M et al. (2007). Genistein effects on bone metabolism in osteopenic postmenopausal women: a randomized trial. J Clin Endocrinol Metab, 92(8):3061–3066.
September 4, 2022
In recent years, scientists have begun to uncover compelling links between diet and cognitive function. Among the standout foods in this space is fermented soy , long valued in traditional Asian cuisines and now gaining attention for its role in supporting brain health and possibly even preventing neurodegenerative disease. The Cognitive Connection: Fermentation Unlocks Soy’s Potential Fermented soy products like natto , miso , and tempeh contain compounds that may improve memory, protect neurons, and reduce inflammation in the brain. These include: Genistein : A soy isoflavone shown to cross the blood-brain barrier and act as a neuroprotective antioxidant. Daidzein : Another isoflavone, converted into equol in the gut (especially through fermentation), with known anti-inflammatory effects. Bioactive peptides : Produced during fermentation, these may inhibit oxidative stress and support neurotransmitter balance. What the Research Says Several studies suggest that regular consumption of fermented soy may help preserve cognitive function, particularly in older adults: A 2021 Japanese cohort study found that adults over 65 who consumed high amounts of fermented soy (especially miso and natto) experienced significantly lower rates of cognitive decline over a 3-year period. (Kobayashi et al., Nutrients, 2021) In a review published in Frontiers in Aging Neuroscience, isoflavones like genistein were shown to improve hippocampal function and reduce neuroinflammation in both human and animal models. (Luine et al., Front. Aging Neurosci., 2018) Fermented soy foods are also linked to lower levels of systemic inflammation , a key risk factor in neurodegeneration. This anti-inflammatory benefit may come from both their isoflavone content and probiotic effects. Mechanisms of Action Here are a few ways fermented soy may support brain health: Antioxidant Effects : Neutralizes reactive oxygen species (ROS) that damage neurons. Estrogenic Modulation : Isoflavones mimic weak estrogen, which plays a role in memory and cognitive regulation. Microbiome-Brain Axis : Fermented soy improves gut flora, which can influence brain chemistry and inflammation levels. Neurotransmitter Support : Some fermented soy peptides may influence levels of serotonin and GABA. Best Fermented Soy Foods for Brain Health Natto : Highest in vitamin K2 and nattokinase; good source of genistein. Miso : Rich in bioavailable isoflavones and probiotics. Tempeh : Excellent source of protein and prebiotic fiber. For best results, choose unpasteurized, organic options and incorporate them into meals regularly (3–5 times per week). Final Thoughts Fermented soy is emerging as a functional food for cognitive wellness . Its rich profile of neuroprotective compounds, enhanced through fermentation, makes it an excellent dietary ally for aging populations and those focused on brain longevity. Add a scoop of miso to your soup, enjoy a tempeh stir-fry, or get adventurous with natto — your brain may thank you. References: Kobayashi S et al. (2021). Consumption of fermented soy and cognitive decline: a cohort study in Japan. Nutrients, 13(2):503. Luine VN et al. (2018). Isoflavones and cognitive function: a review of the evidence. Front Aging Neurosci., 10: 331.
Haelan 951, Nitrogen Fermented Soy
August 26, 2022
Fermented soy has been shown to support heart health, bone density, cognitive function, and more. But which fermented soy products offer the greatest health benefits—and how can you easily add them to your diet? Here’s a science-backed guide to the top fermented soy foods and how to eat them every day. 1. Natto: The Cardiovascular Powerhouse Rich in : Vitamin K2 (menaquinone-7), nattokinase, genistein Benefits : Supports arterial flexibility, reduces clot formation, enhances bone density How to Eat It : Mix with mustard and chopped scallions, serve over warm rice or toast Tip : Look for organic, unpasteurized versions for maximum benefit 2. Tempeh: The Gut-Friendly Protein Source Rich in : Protein, fiber, isoflavones, magnesium Benefits : Improves gut health, supports muscle repair, balances hormones How to Eat It : Slice and pan-fry, grill as a meat substitute, or add to stir-fries Tip : Marinate before cooking to enhance flavor and texture 3. Miso: The Savory Anti-Inflammatory Rich in : Isoflavones, probiotics, minerals Benefits : Reduces inflammation, supports digestion, promotes microbiome diversity How to Eat It : Stir into warm (not boiling) water for miso soup; use as a marinade or glaze Tip : Use unpasteurized miso to retain live probiotic cultures 4. Soy Sauce (Traditionally Brewed) Rich in : Antioxidants, small peptides Benefits : Offers mild fermentation benefits; enhances flavor without added sugar How to Eat It : Use sparingly in marinades, dressings, or dipping sauces Tip : Choose traditionally fermented, low-sodium soy sauces for a healthier option 5. Fermented Tofu (Chao or Fuyu) Rich in : Protein, enzymes, isoflavones Benefits : Supports gut health and digestion How to Eat It : Spread on rice or use in congee or stews Tip : Popular in Chinese and Southeast Asian cuisines; often sold in jars 6. Nitrogen Fermented Beverage 🍃TOP HEALTH PICK🍃 Rich in : Bioavailable peptides, amino acids. isoflavones... Benefits : Supports deep cellular health, lower inflammation and boost immunity How to Eat It : Mix into a smoothie or add stevia and drink Tip : Most known in cancer research but plenty of adoption general health and even athletic recovery. Learn More How to Get the Most from Fermented Soy Rotate varieties : Each has unique compounds and benefits. Buy unpasteurized : Preserves probiotics and live enzymes. Pair with fiber : Increases fermentation effects in the gut. Eat 3–5 times per week : For consistent exposure to beneficial compounds. Final Thoughts Fermented soy foods are diverse, delicious, and deeply nutritious. With options ranging from miso and tempeh to natto and fermented tofu, it’s easy to add these science-backed superfoods to your weekly meal plan. But, for deep healing, our favorite is the nitrogen fermented beverage. Start with one, and build a habit of eating with both flavor and function in mind. References: Geleijnse JM et al. (2004). Vitamin K2 intake and cardiovascular health. J Nutr, 134(11): 3100–3105. Suwandi J et al. (2020). Gut microbiota modulation by tempeh. Front Microbiol, 11: 1205. Sasaki S et al. (2019). Miso and inflammation. Clin Nutr, 38(2): 897–903.
January 11, 2022
Chronic inflammation is a root contributor to numerous diseases, including cardiovascular disease, type 2 diabetes, and even some cancers. While medications can help manage inflammation, diet plays a powerful role in naturally reducing it. One often overlooked anti-inflammatory powerhouse? Fermented soy foods.  What Is Inflammation (and Why Should You Care)? Inflammation is the body’s immune response to injury or infection. When it becomes chronic , this response can damage healthy tissue and lead to long-term health problems. Lifestyle, stress, and diet all influence inflammation levels. Why Fermented Soy Is Special Fermented soy products like miso , natto , and tempeh contain unique compounds that have demonstrated anti-inflammatory properties: Isoflavones (genistein and daidzein): Modulate immune response and reduce inflammatory signaling. Bioactive peptides : Created during fermentation, these small protein fragments can inhibit pro-inflammatory cytokines. Probiotics : Improve gut health, which is directly linked to inflammation regulation via the gut-immune axis. Scientific Evidence: Fermented Soy vs. Inflammation A 2019 randomized controlled trial found that adults with metabolic syndrome who consumed miso soup daily had significantly reduced C-reactive protein (CRP) levels — a marker of systemic inflammation. (Sasaki et al., Clinical Nutrition, 2019) Genistein, one of the key isoflavones in soy, has been shown to suppress NF-κB , a transcription factor that triggers the production of inflammatory cytokines like IL-6 and TNF-α. (Wei et al., Journal of Inflammation Research, 2012) Fermented soy peptides derived from tempeh and natto have shown anti-inflammatory effects in vitro , inhibiting enzymes such as COX-2 and reducing reactive oxygen species. (Chung et al., Journal of Medicinal Food, 2008) How Fermentation Enhances the Anti-Inflammatory Effect Breakdown of Anti-Nutrients : Fermentation reduces compounds like phytic acid that block nutrient absorption. Increased Bioavailability : Isoflavones are converted to more active forms, such as equol, during fermentation. Synergy with Probiotics : Fermented foods support gut bacteria that regulate inflammation via the short-chain fatty acid pathway. Best Fermented Soy Foods to Try Miso : Use in soups or as a savory glaze for vegetables or protein. Tempeh : A firm, chewy protein ideal for stir-frying or grilling. Natto : A strong-flavored option high in K2 and nattokinase, best enjoyed with rice or eggs. Look for unpasteurized and organic versions when possible to maximize probiotic and nutrient content. Final Thoughts Fermented soy is a science-backed, natural option for reducing inflammation throughout the body. By incorporating foods like miso, natto, and tempeh into your weekly routine, you can support a healthier immune response and reduce your risk of chronic disease. References: Sasaki S et al. (2019). Daily miso soup intake lowers inflammation markers in adults with metabolic syndrome. Clinical Nutrition, 38(2): 897-903. Wei H et al. (2012). Genistein inhibits NF-κB activation and reduces inflammation in various models. Journal of Inflammation Research, 5: 75-83. Chung HJ et al. (2008). Anti-inflammatory effects of peptides derived from fermented soy products. J Med Food, 11(3): 429-437.
A close up of a wooden barrel in a warehouse.
July 13, 2021
Fermented soy has been a dietary cornerstone in traditional Asian cultures for centuries. But beyond its rich flavor and culinary versatility, fermented soy offers significant, evidence-backed benefits for cardiovascular health. Scientific studies are increasingly spotlighting compounds like vitamin K2 and nattokinase as key players in heart protection. What Makes Fermented Soy Unique? Fermentation transforms soybeans from a nutrient-rich food into a functional superfood. The process not only improves digestibility but also enhances the bioavailability of compounds beneficial to heart health. Foods like natto (fermented with Bacillus subtilis) are especially potent in this regard. Vitamin K2: A Key Nutrient for Arterial Flexibility Vitamin K2 (specifically menaquinone-7 ) plays a crucial role in calcium metabolism. It activates proteins like matrix Gla-protein (MGP) and osteocalcin , which help direct calcium to the bones and keep it out of the arteries. A long-term Dutch cohort study involving over 4,800 participants found that high vitamin K2 intake was associated with a 50% reduction in arterial calcification and a 57% lower risk of coronary heart disease . (Geleijnse et al., Journal of Nutrition, 2004) Natto is one of the richest natural sources of vitamin K2. A single serving can provide more than 100 mcg of menaquinone-7 — well above the daily recommended intake. Nattokinase: Nature’s Fibrinolytic Enzyme Nattokinase is an enzyme produced during natto fermentation. It has potent fibrinolytic (clot-busting) activity, which supports healthy blood flow and may reduce the risk of thrombosis. The enzyme was first isolated and studied by Dr. Hiroyuki Sumi in 1987. In laboratory studies, nattokinase was shown to dissolve fibrin , a protein involved in blood clot formation. (Sumi et al., Acta Haematologica Japonica, 1990) Animal and human trials have indicated that nattokinase supplementation can reduce blood pressure , lower LDL cholesterol , and improve blood vessel elasticity. Comparing Fermented vs. Unfermented Soy While both forms offer benefits, unfermented soy does not contain significant levels of vitamin K2 or nattokinase. Additionally, compounds like isoflavones and peptides are more bioavailable in fermented forms, making them more effective for cardiovascular support How to Include Fermented Soy in Your Diet Natto : Eat with rice, mustard, and green onions Miso : Use as a base for soup or sauces Tempeh : Grill, stir-fry, or bake with spices Fermented Soy Drinks: Nitrogen Fermented Soy (Haelan) Look for non-pasteurized and organic options to retain the full spectrum of nutrients and beneficial microbes. Final Thoughts Fermented soy isn’t just a dietary tradition—it’s a science-backed way to support heart health naturally. With key compounds like vitamin K2 and nattokinase, fermented soy products like natto offer a functional food approach to maintaining healthy arteries and reducing cardiovascular risk.  Incorporate it regularly, and let food truly be your medicine. References: Geleijnse JM et al. (2004). Dietary intake of menaquinone is associated with a reduced risk of coronary heart disease: the Rotterdam Study. J Nutr, 134(11):3100-3105. Sumi H et al. (1990). A novel fibrinolytic enzyme (nattokinase) in the vegetable cheese natto; a typical and popular soybean food in the Japanese diet. Acta Haematol Jpn, 53(2): 99–104.