Allergic reactions to vitamin B12 are rare, but real. The reason may sound strange, but it's true - an allergy to cobalt.

Should you take a vitamin B complex supplement with all eight B vitamins or a supplement with B12 alone? This article helps ...

He also claims, "These facilities that actually compound this B12 ... They are referencing using the cyanocobalamin form of ...

A Vitamin B12 is what is known as an essential nutrient. That means two things: First, an essential nutrient is a chemical compound that is crucial to the proper functioning of the body ...

Vitamin B12 is essential for energy, brain function, and red blood cell production. If you’re a vegetarian, getting enough vitamin B12 may seem challenging, but it’s not impossible.

Dr. Eric Verdin studies the biology of aging and how our lifestyle can extend our quality of life. Vitamin D is among the ...

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 ...

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.