If you're dealing with a B12 deficiency or simply struggling to get enough of the essential vitamin in your diet, B12 supplements can help. These are the benefits and potential risks to know.

Among the most popular vitamins touted on the labels of such drinks is vitamin B12 – a nutrient known to help with energy, but usually not in the way the industry advertises. Start the day smarter.

Dear Doctors: I was surprised when a blood test at my annual checkup found I’m low in B vitamins, especially B12. My doctor gave me a shot, and the fatigue that I had been feeling went away. Why is ...