Nuts are great sources of healthy fats, flavonoids, phenolic acids, melatonin, folate, and vitamin E that protect the cells from the accumulating free radical damage and oxidative stress, which are considered to be the main causes of the aging process of brain tissue and cognitive impairment.
All nuts are healthy, but amongst the wide variety the one shaped most like a brain is by far the one most beneficial to the brain. Walnuts are great sources of mono and polyunsaturated fatty acids.They are responsible for decreasing beta amyloid protein concentrations, which is the main constituents of the amyloid plaques in the brain of people suffering from Alzheimer’s disease. Walnuts inhibit their fibrils polymerization and solubilize the preformed fibrils by that it decreases induced cell death and DNA damage. Early long term dietary supplementation with walnuts helps protect the brain’s cognitive functions and reduces the risk or delays the onset of dementia and Alzheimer disease, as well as reducing the risk of depression especially in people with chronic diseases like heart disease and type-2 diabetes mellitus.