Concierge Psychiatry
of Main Line Where Your Story Matters
of Main Line Where Your Story Matters
Integrative Approach
How diet and the gut-brain axis relate to mental health, and what the evidence does and doesn't show.
The brain is one of the body's most energy-hungry organs, and the nutrients it relies on come from what we eat. Nutritional psychiatry studies how dietary patterns relate to mood, cognition and mental health.
Researchers are exploring links between nutrition, inflammation, the gut microbiome and psychiatric symptoms. Much of this evidence is still early, and many findings are associations rather than proof of cause. Nutrition is not a replacement for evidence-based treatment, but it can be a thoughtful part of comprehensive care.
In the SMILES trial (Jacka et al., 2017, BMC Medicine), adults with major depression who received dietary counselling in addition to their usual care were more likely to reach remission (32% vs 8% with social support). The trial was small and unblinded, and a much larger trial of a food-related intervention (MooDFOOD, 2019) did not prevent depression, but SMILES was the first randomized trial to test diet as part of depression treatment.
Rich in vegetables, fruits, whole grains, legumes, olive oil, fish. Associated with about a one-third lower risk of depression in observational studies (association, not proof of cause).
Combines Mediterranean and DASH diets. Emphasizes leafy greens, berries, nuts, fish. Developed to support cognitive health in older adults, although a 2023 trial did not show a clear cognitive benefit over a comparison diet.
High in refined sugars, saturated fats, processed foods. Associated with increased depression and anxiety risk in multiple studies.
Your dedicated psychiatrist has time to discuss nutrition as part of comprehensive care. We can assess for deficiencies, discuss dietary changes, and integrate nutritional approaches with evidence-based treatments—not as replacement, but as complement to standard care.
These nutrients have emerging evidence for roles in brain function and mental health. We can assess levels and discuss whether supplementation may be appropriate. Please discuss any supplement with your physician before starting it; interactions with medications are possible.
EPA and DHA from fatty fish. Meta-analyses and international guidelines support EPA-predominant omega-3 as an add-on to antidepressant treatment in adults, with modest benefit. Because dose, product quality and interactions (for example with blood thinners) matter, we individualize any recommendation.
Deficiency is common, especially in northern climates. Receptors found throughout brain. Mixed evidence for supplementation in depression (in the large VITAL-DEP trial, vitamin D did not prevent depression), but correcting a confirmed deficiency is prudent.
B12 and folate are essential for brain health, and deficiency can cause or worsen depressive symptoms; we check levels when indicated. L-methylfolate has limited evidence as an add-on for some patients. We do not routinely recommend MTHFR genetic testing.
Zinc and magnesium are involved in brain function, but trials of supplementation for depression or anxiety are small and inconsistent. We consider them only when there is a specific reason.
If you have a history of an eating disorder, please talk with us before making dietary changes.
Nutritional psychiatry is an emerging field. While evidence is growing, it's important to understand:
Learn how nutrition can support your mental health as part of comprehensive psychiatric care. Request a private consultation to explore an integrative approach.
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