Common supplement ingredients for improving cognition include alpha GPC, Bacopa monnieri, blueberry, caffeine, Ginkgo biloba, ginseng, Huperzine A, oxiracetam, and theanine.
Optimal nutrient intake is also important for maintaining brain health, particularly iodine, zinc, copper, vitamin B1, vitamin B3, vitamin B12, and folic acid. Supplementation with these nutrients may be advised if dietary intake is inadequate.