Vegetables
Researchers found that eating vegetables appears to help keep the brain young and may slow the mental decline sometimes associated with growing old16. Cruciferous and green leafy vegetables including cauliflower, spinach, kale, broccoli, cabbage, brussels sprout and collards appear to be the most beneficial17. Researchers say that may be because they contain healthy amounts of vitamin E, an antioxidant that is believed to help fight chemicals produced by the body that can damage cells.
Increased blood level of homocysteine is a strong risk factor for the development of Alzheimer disease and dementia31. Three B vitamins, folic acid, B6, and B12, can help lower your homocysteine levels. Fortified cereal, other grains, and leafy green vegetables are good sources of B vitamins.