Eggs, liver, and peanuts, are especially rich in choline. Major contributors to choline in the American diet are meat, poultry, fish, dairy foods, pasta, rice, and egg-based dishes. Spinach, beets, wheat, and shellfish are also good sources of the choline metabolite, betaine.
Summary: Taking dietary choline supplements may help to protect the brain from Alzheimer’s disease. Choline reduces the activation of microglia which, when overactivated, contribute to neuroinflammation and apoptosis associated with Alzheimer’s. Choline also helps block the production of amyloid plaques.
Source: Arizona State University