Foods for memory (source: Harvard University)

Info source: 

http://www.health.harvard.edu/newsletters/Harvard_Womens_Health_Watch/2012/August/boost-your-memory-by-eating-right

Foods for memory

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If saturated and trans fats are the food villains, then mono- and polyunsaturated fats may be the heroes in the dietary battle to preserve memory. In particular, the Mediterranean diet, with its menu of foods that are high in healthy unsaturated fats (olive oil, fish, and nuts) has been linked to lower rates of both dementia due to Alzheimer's disease and mild cognitive impairment (MCI)—the stage of memory loss that often precedes dementia.

The Mediterranean diet includes several components that might promote brain health:

(1) Fruits, vegetables, whole grains, fish, and olive oil help improve the health of blood vessels, reducing the risk for a memory-damaging stroke.

(2) Fish are high in omega-3 fatty acids, which have been linked to lower levels of beta-amyloid proteins in the blood and better vascular health.

(3) Moderate alcohol consumption raises levels of healthy high-density lipoprotein (HDL) cholesterol. Alcohol also lowers our cells' resistance to insulin, allowing it to lower blood sugar more effectively. Insulin resistance has been linked to dementia.