Shift toward a Mediterranean dietary pattern

The Mediterranean pattern is the best-studied anti-inflammatory dietary template for both physical and mental health.

Why it works

The Mediterranean diet reduces inflammation through the combined effects of high polyphenol intake (olive oil, vegetables, fruits), high omega-3 intake (seafood), high fiber intake (legumes, whole grains), and low refined carbohydrate and processed food intake. No single food is responsible; the pattern produces a consistently favorable cytokine and eicosanoid profile. The SMILES trial demonstrated that a Mediterranean-style dietary counseling program significantly improved depressive symptoms versus social support control.

How to do it

1. Adopt the pattern incrementally: start with olive oil as primary cooking fat, then add two weekly fatty fish meals.
2. Build daily legume intake (hummus, lentil soup, beans in salads) — these are the protein base of the pattern.
3. Treat meat as a condiment rather than a centerpiece — a few times per week, not every meal.
4. Use nuts and seeds as daily snacks, replacing processed snack products.

Evidence

The SMILES RCT found that dietary counseling toward a Mediterranean-style diet significantly reduced depressive symptoms compared to social support control in adults with major depressive disorder. (rct)

SMILES was a relatively small RCT (67 completers); effect size was meaningful but the trial population had clinical depression and dietary counseling, not just a food change.

Sources

• Jacka et al. (2017), A randomised controlled trial of dietary improvement for adults with major depression (the "SMILES" trial), BMC Medicine

Common mistake

Treating the Mediterranean diet as a specific prescription list rather than a pattern — trying to "perfectly" follow a recipe-based version without understanding what makes it anti-inflammatory.