3. Cashews (when highly processed or fried)
Industrial cashews are often fried in low-quality oils. This increases their content of oxidized fats, which promote systemic inflammation.
Risk: inflammatory processes that impair cognitive function.
4. Brazil nuts in excessive amounts
Although highly nutritious, they contain very high levels of selenium. Too much selenium can cause hormonal imbalances, nervousness, and memory issues.
Risk: selenium toxicity if consumed frequently in large quantities.

Nuts That PROTECT Your Brain From Dementia
1. Walnuts
The queens of brain health. Their shape is no coincidence—they’re rich in alpha-linolenic acid (ALA), a plant-based omega-3, plus antioxidants, vitamin E, and anti-inflammatory compounds.
Benefit: neuronal protection, better memory, and lower risk of cognitive decline.
2. Almonds
Rich in vitamin E—one of the most important antioxidants for the brain. They also help stabilize blood sugar levels, which is crucial for steady mental energy.
Benefit: improved cognitive performance and protection against brain aging.