Potato
Potato may seem to be the least likely food for improving memory or brain function, but in fact the baked potato with flesh and skin and without salt is a very healthy, low calorie, high fiber food. It is a good source of vitamin C, vitamin B6, potassium and manganese – all of which are beneficial to brain health. 100g of baked potato supplies 16 percent DV (daily value) each of vitamin C and vitamin B6, 15 percent DV of potassium and 11 percent DV of manganese. Vitamin B6 plays an important role in the production of serotonin (lack of which is linked to depression), melatonin (hormone for a good night’s sleep) and GABA (needed for normal brain function).