Nuts are considered one of the best natural snacks: practical, energetic and rich in nutrients. However, not all of them benefit the brain equally. Some, when consumed in excess or under certain conditions, can affect memory, concentration and even increase inflammatory processes that harm cognitive health.
On the other hand, other nuts provide fatty acids, antioxidants and neuroprotective substances that science associates with a lower risk of cognitive decline and dementia.
Below you will find a clear guide: which ones you should limit and which ones you should incorporate more frequently if you are looking to protect your brain in the long term.
1. Peanuts (when not well preserved)
Improperly stored peanuts can develop aflatoxins, toxins produced by fungi that directly affect brain and liver cells. Although it does not affect all peanuts, it is one of the most sensitive nuts to moisture and heat.
Risk: inflammation, cell damage, and concentration problems.
2. Excess salted pistachios
Natural pistachios are healthy, but the most consumed are roasted with high amounts of salt. Excess sodium increases blood pressure, which impairs cerebral circulation.
Risk: reduced cerebral oxygenation, dizziness and mental fatigue.
3. Cashews (when heavily processed or fried)
Industrial cashews are usually fried in low-quality oils. This increases its content of oxidized fats, which promote systemic inflammation.
Risk: inflammatory processes that affect cognitive function.
