Nuts are considered one of the best natural snacks: convenient, energizing, and rich in nutrients. However, not all nuts benefit the brain equally. Some, when consumed in excess or under certain conditions, can affect memory and concentration, and even increase inflammatory processes that harm cognitive health.
In contrast, 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 .
Nuts that can damage your brain
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.
