What to Eat for a Sharper Brain: Omega-3s, Polyphenols & Nutrients That Matter | Dr. Tommy Wood

Dr. Stephanie Estima
Dr. Stephanie EstimaMar 19, 2026

Why It Matters

Optimizing these nutrient pillars can enhance brain performance, lower dementia risk, and improve overall metabolic health, offering a tangible strategy for individuals and clinicians alike.

Key Takeaways

  • Prioritize vitamin D, B12, folate, B6, magnesium for cognition
  • Include omega‑3 EPA/DHA and polyphenol‑rich foods for neuroprotection
  • Aim for 1.2‑1.6 g protein per pound to boost antioxidants
  • Test omega‑3 index; target >6% (ideally >8%) in red cells
  • Plant‑based diets need B12 supplement and adequate omega‑3 sources

Summary

The video centers on how targeted nutrition can sharpen cognition and support long‑term brain health, with Dr. Tommy Wood outlining a flexible yet evidence‑based framework. He emphasizes a core set of nutrients—vitamin D, B‑vitamins (especially B12, folate, B6), magnesium, zinc, and antioxidant vitamins C and E—alongside omega‑3 fatty acids and polyphenols as essential for reducing dementia risk. Key insights include consuming minimally processed, nutrient‑dense foods to avoid excess calories, meeting protein needs of 1.2‑1.6 g per pound (particularly for aging adults), and ensuring adequate omega‑3 status via an omega‑3 index above 6 % (ideally 8 %). Polyphenol‑rich sources such as berries, coffee, tea, and roasted nut skins support gut, vascular, and direct brain anti‑inflammatory pathways. Notable examples cited are women’s superior conversion of plant‑based ALA to DHA/EPA, the American diet’s reliance on coffee as its largest antioxidant source, and research linking regular berry consumption or modest red‑meat intake to lower dementia and mood‑disorder rates. Dr. Wood also recommends 2‑4 g of combined EPA/DHA daily (or 5‑10 g weekly) and suggests B12 supplementation for strict vegans. The implications are clear: a balanced diet that blends animal and plant foods—or strategic supplementation—can optimize cognitive function while supporting body composition. Monitoring omega‑3 levels and tailoring protein intake become practical steps for professionals seeking to maintain mental acuity and mitigate age‑related cognitive decline.

Original Description

No dogma, no rigid diet plans — just the core nutrients your brain actually needs to function well and resist cognitive decline. Neuroscientist Dr. Tommy Wood breaks down the essential brain health nutrients (including the B vitamins, omega-3s, and antioxidant polyphenols most people aren't getting enough of), why protein targets matter more as we age, and a fascinating reason why women may actually have a natural advantage when it comes to converting omega-3s. Whether you eat meat, follow a plant-based diet, or land somewhere in between, this is the practical nutrition framework your brain has been waiting for.
Watch the full episode at https://youtu.be/nJhZnzvW-DU

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