Michael Greger: Diets and Foods Shown to Improve Depression in Randomized Controlled Trials

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Peer-Reviewed Research
M
Michael Greger

Video Summary · May 18, 2026

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Key Takeaways

  • Adopt a plant-based or Mediterranean-style diet to improve depression, anxiety, and overall mental health. Increase intake of whole grains, vegetables, fruits, nuts, and legumes.
  • Eliminate meat entirely for mood improvements within two weeks. Even cutting out meat without replacing it with plant-based alternatives can help.
  • Limit unhealthy snacks, take-out, and red meat to further reduce depressive symptoms and improve quality of life.
  • Incorporate herbs like lemon balm or lavender into your routine, either in capsule form or as tea, to help manage anxiety and depression symptoms.

Supplements & Protocols Mentioned

  • Lemon balm leaf powder: Approximately 2/3 teaspoon daily, in capsule form.
  • Lavender flower powder: Approximately 2/3 teaspoon daily, in capsule form, or as tea twice a day.
  • Vinegar: Two tablespoons diluted in a cup of water, twice daily with meals for four weeks.
  • Wild blueberry powder: Approximately five teaspoons daily.

Notable Quotes

“Diet may be as important to psychiatry as it is to cardiology, endocrinology, and gastroenterology.”

“Improvements in mental health outcomes were significantly correlated with a greater diversity of vegetables and fruits, intake of legumes and nuts, and reduced consumption of unhealthy snacks, take-out, and meat.”

Bottom Line

Shift to a plant-based or Mediterranean diet, eliminate meat, and consider incorporating herbs like lemon balm or lavender to improve mental health and reduce depressive symptoms.

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Medical Disclaimer

This article is for informational purposes only and does not constitute medical advice. The research summaries presented here are based on published studies and should not be used as a substitute for professional medical consultation. Always consult a qualified healthcare provider before making any changes to your health regimen.

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