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Transform Your Mental Health With Diet & Lifestyle | Dr. Chris Palmer

Episode 222 Mar 31, 2025 3h 13m 26 insights
My guest is Dr. Chris Palmer, M.D., a board-certified psychiatrist and professor at Harvard Medical School. He explains how specific nutrition, exercise, supplement-based, and other factors can improve mitochondrial health and thereby provide relief from adult and childhood ADHD, bipolar disorder, schizophrenia, and symptoms of autism. We discuss mitochondrial biology, whether vaccines can impact inflammation and mitochondrial health, and the potential ramifications. We also review creatine, methylene blue, and urolithin A, as well as the role of B vitamins and iron in treating depression. By the end of this episode, you will understand the powerful link between metabolic health and mental health, and the lifestyle, dietary, and other factors you can leverage to help overcome common mental health challenges and disorders. Read the episode show notes at hubermanlab.com.
Actionable Insights

1. Embrace Six Pillars of Lifestyle Medicine

Focus on diet/nutrition, exercise/movement, sleep, managing substance use (reducing/minimizing/eliminating), stress reduction (mindfulness, meditation, yoga), and fostering relationships/purpose to improve overall health by supporting metabolism and mitochondrial function.

2. Prioritize Lifestyle Over Supplements

Before considering any supplements, prioritize foundational lifestyle changes (diet, sleep, bright light, relationships, purpose, substance avoidance), as no supplement can undo the damage of a harmful lifestyle.

3. Improve Diet for Metabolic Health

Optimizing your diet is crucial for promoting metabolic health and neuroplasticity, which are inseparable for overall brain and body function.

4. Avoid Ultra-Processed Foods

Eliminate or significantly reduce consumption of ultra-processed foods, as they are directly linked to worse physical and mental health outcomes, including cardiovascular disease, obesity, diabetes, and a broad range of mental disorders.

5. Ensure Adequate B12, Folate, Iron

Ensure sufficient intake of B12, folate, and iron, as these are essential for proper mitochondrial function; deficiencies can lead to neuropsychiatric symptoms and metabolic problems.

6. Vegans/Vegetarians: Supplement B12, Monitor Levels

If following a vegetarian or vegan diet, take appropriate B12 supplementation and measure your levels annually to prevent deficiency, which can cause neurological damage and neuropsychiatric symptoms.

7. Address Iron Deficiency in Young Women

Young women (ages 12-21), particularly due to menstruation, should be aware of high risk for iron deficiency, which can impair mitochondrial function, affecting brain health and potentially contributing to depression, anxiety, or eating disorders.

8. Monitor B12 on Oral Contraceptives/Metformin

Individuals taking oral contraceptives or metformin should be aware that these medications can impair B12 absorption and should monitor their B12 levels.

9. Prioritize Adequate Sleep

Adequate, quality sleep is critical for optimal metabolic health and neuroplasticity, impacting overall brain and body function.

10. Exercise for Metabolic & Brain Health

Regular physical activity, whether for muscle size or endurance, improves metabolic health and neuroplasticity by increasing the number and health of mitochondria in muscle tissue and brain.

11. Start with Daily Walking & Morning Sunlight

If you are not currently exercising, begin by incorporating daily walks and aim for morning sunlight exposure, which are simple yet effective steps for improving overall health.

12. Manage Substance Use

Reduce, minimize, or eliminate the use of harmful substances to improve metabolic health and prevent mitochondrial damage.

13. Limit Alcohol to Prevent Mitochondrial Toxicity

High doses of alcohol cause mitochondrial toxicity in liver and brain cells, leading to severe conditions like cirrhosis and metabolic disruption, so limit consumption.

14. Avoid High-Dose Stimulants

While low doses of stimulants can improve brain metabolism, high doses hyper-stimulate mitochondria, leading to reactive oxygen species production, chronic mitochondrial dysfunction, and harm to human health.

15. Use Nicotine Cautiously at Low Doses

Low doses of nicotine can stimulate mitochondria, but high doses may be toxic, lead to addiction, and deplete mitochondria; caution is advised, especially for young individuals.

16. Ketogenic Diet/Fasting Under Medical Guidance

For severe mental health conditions, consider a ketogenic diet or fasting regimen, which can dramatically shift metabolism and improve mitochondrial health, but ensure it is done under medical supervision with adequate nutrition.

17. Explore Intermittent/Fasting Mimicking Diets

Brief ketogenic interventions, intermittent fasting, or fasting-mimicking diets (e.g., 5-day cycles of 600 calories several times a year) can improve metabolic health and longevity biomarkers, but ensure adequate nutrition and medical oversight.

18. Consider Creatine Supplementation

Creatine, a molecule foundational to mitochondrial function and energy metabolism, may improve symptoms of major depression, bipolar disorder, and cognitive impairment, particularly for individuals with low baseline levels (e.g., vegetarians/vegans).

19. Discuss Methylene Blue with Clinician

Methylene blue, an electron acceptor and donor, may help dysfunctional mitochondria by preventing reactive oxygen species formation, but requires careful dosing and medical consultation to avoid reductive stress or serotonin syndrome.

20. Consider Urolithin A for Muscle Health

Urolithin A supplementation has been shown to improve muscle mass and performance in elderly individuals within approximately eight weeks, offering metabolic benefits associated with slowing the aging process.

21. Optimize Parental Metabolic Health for Offspring

Parents should optimize their metabolic health (addressing obesity, diabetes, and metabolic syndrome) before conception, as poor parental metabolic health significantly increases the risk of neurodevelopmental disorders in offspring.

22. Prevent Infections to Reduce Neurodevelopmental Risk

Severe infections can cause inflammation that impairs mitochondrial function and increases the risk of neurodevelopmental disorders, emphasizing the importance of infection prevention.

23. Workup for Abrupt Neurodevelopmental Changes

If a child exhibits abrupt changes in neurodevelopment, a full medical workup is warranted, including checks for vitamin/nutrient deficiencies (e.g., central B12 deficiency) and consideration of interventions like a ketogenic diet.

24. Test for Pernicious Anemia

If experiencing B12 deficiency or dementia-like symptoms, particularly with age, test for pernicious anemia (an autoimmune B12 deficiency) as it is a treatable form of dementia requiring B12 injections.

25. Investigate Central B12 Deficiency

For severe neuropsychiatric symptoms, especially with an abrupt onset or following an inflammatory event, investigate potential central B12 deficiency (CD320 antibody) via spinal tap, as it may be treatable with immunosuppressants and high-dose B12.

26. Recognize Metabolic Unhealth Beyond Obesity

Understand that metabolic unhealth is not exclusive to obesity; thin individuals can also be metabolically unhealthy due to deficiencies in essential vitamins and nutrients, impacting mitochondrial function and mental health.