4 nuts that can damage your brain (and 4 that protect it from dementia)

1. Peanuts (when not properly preserved)

Improperly stored peanuts can develop  aflatoxins , toxins produced by fungi that directly affect brain and liver cells. While not all peanuts are affected, they are among the nuts most sensitive to humidity and heat.
Risks:  inflammation, cell damage, and concentration problems.

2. Overly salted pistachios

Natural pistachios are healthy, but the most commonly consumed are  roasted pistachios with high amounts of salt . Excess sodium increases blood pressure, which impairs cerebral circulation.
Risks:  reduced brain oxygenation, dizziness, and mental fatigue.

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3. Cashews (when highly processed or fried)

Commercially produced cashews are often fried in low-quality oils. This increases their content of oxidized fats, which promote systemic inflammation.
Risk:  inflammatory processes that affect cognitive function.

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