Government dietary guidelines recommend these vitamins:
Vitamin B12. If you are 50 years or older, choose foods high in vitamin B12, such as fortified cereals, or take a B12 supplement (2.4 mcg total of B12 a day). Vitamin B12 helps your brain, blood, and nervous system.
Vitamin D. If you are older than 70, you need 800 IU (international units) of vitamin D a day (600 IU for adults under 70). Natural sources include sunlight, salmon and tuna, and foods fortified with vitamin D such as cereals, dairy products, and orange juice. Vitamin D can help prevent softening of the bones and reduce the risk of bone fractures.
