Dear I.F.: The DV (a replacement for what we used to call the recommended daily allowance, or RDA) for vitamin B12 is 2.4 mcg ...

Medically reviewed by Jonathan Purtell, RDN Vitamin B12 helps your body make red blood cells, produce energy, and keep your ...

Vitamin B12 is an essential nutrient your body can’t make, ... (240 mL) of fortified cereal containing 4.8 mcg (200% of the DV) of vitamin B12 daily for 14 weeks, ...

Males over 50 years who cannot get enough nutrients from their diet may benefit from taking a multivitamin. This article looks at the best options for different needs and budgets.

Medically reviewed by Suzanne Fisher, RDVitamin B12 is a powerhouse nutrient crucial for maintaining overall health and energy levels. It impacts everything in your body, from your nervous system to ...

Dr. Roach: I am 73, and I was worried about dementia. Turns out, I am “normal.” However, the neurologist told me to take 2,000 mcg of B12 daily. My multivitamin has 100 mcg, which is 4,167% of ...