Q&A: Dr. Greger talks Omega-3, Pesticides, and Iron
NutritionFacts.orgPublished on June 25, 2026
Summary authored by editor@wellifi.com
TLDR Summary
Dr. Michael Greger discusses various nutrition-related questions, emphasizing the importance of evidence-based dietary choices for health improvements. Key topics include the benefits of vinegar, flaxseed, and dietary changes for reversing fatty liver and diabetes.
Key Points
- Polyphenols are not trapped by sesame seeds.
- Low stomach acid can lead to malnutrition; address root causes.
- Methylene Blue is toxic and not effective for health issues.
- Non-alcoholic beer is healthier compared to alcoholic beer but not as good as water.
- Dietary changes can reverse fatty liver and diabetes.
- Vinegar can help reduce internal fat by boosting AMPK.
- Flaxseed intake updated to 3 tablespoons to lower LDL cholesterol.
- Algae-based omega-3s are recommended for cognitive health.
- Organic produce has safety measures against pathogens.
- Pairing iron-rich foods with vitamin C enhances absorption.
Understanding Nutrition with Dr. Michael Greger
In a recent live session, Dr. Michael Greger, a renowned nutrition expert and founder of NutritionFacts.org, addressed various health-related questions, providing insights based on his extensive research in the field of nutrition. Here's a summary of the key points discussed during the session.
Key Discussions and Health Insights
Polyphenols and Nutrient Absorption
One viewer inquired about the potential interaction between polyphenols and sesame seeds. Dr. Greger reassured that consuming sesame will not trap polyphenols in water-soluble vitamins, allowing for proper absorption.
Low Stomach Acid and Malnutrition
Dr. Greger discussed the implications of low stomach acid, often caused by proton pump inhibitors like Prilosec and Nexium, which can lead to malnutrition and hinder nutrient absorption, particularly of Vitamin B12. He emphasized the importance of addressing the root causes of low thyroid hormones through appropriate dietary changes.
Methylene Blue: A Cautionary Note
Addressing the question about Methylene Blue, Dr. Greger advised against its use, highlighting its toxicity and ineffectiveness in treating conditions such as back pain.
Non-Alcoholic Beer: A Healthier Choice?
When asked about non-alcoholic beer, Dr. Greger noted that its health benefits depend on what it replaces in one's diet. He recommended water over non-alcoholic beer for hydration.
Fatty Liver and Diabetes Reversal
Dr. Greger provided hope for individuals with fatty liver and diabetes, explaining that dietary changes and weight loss can reverse insulin resistance and improve overall health.
Vinegar and Fat Reduction
He discussed the benefits of vinegar, particularly acetic acid, in boosting AMPK, an enzyme that regulates fat metabolism. Regular consumption of diluted vinegar can significantly reduce visceral fat.
Flaxseed Recommendations
Dr. Greger updated his recommendations for flaxseed intake to 3 tablespoons daily, citing its effectiveness in lowering LDL cholesterol while addressing concerns about potential cyanide exposure.
Algae-Based Omega-3s and Cognitive Health
When discussing omega-3 supplements, Dr. Greger encouraged the consumption of algae-based DHA for cognitive health, especially in individuals who do not consume fish.
Organic vs. Non-Organic Produce
Dr. Greger addressed concerns about the safety of organic produce, emphasizing that while organic foods might be perceived as having higher pathogen risks due to manure fertilization, they are often treated to minimize these risks.
Iron Absorption and Nutritional Strategies
For those struggling with iron absorption, Dr. Greger recommended pairing iron-rich foods with vitamin C-rich foods to enhance absorption, such as citrus fruits and peppers.
Conclusion
Dr. Michael Greger's insights provide valuable guidance on nutritional health, emphasizing the importance of evidence-based dietary choices. For anyone looking to improve their health through nutrition, following Dr. Greger's recommendations can lead to significant benefits.
