Medically reviewed by Melissa Nieves, LND Methylcobalamin and cyanocobalamin are two different forms of vitamin B12 that have ...

Explore how vitamin B₁₂ supports the brain and nervous system, why deficiencies persist even in well-nourished populations, ...

A vitamin B12 deficiency can cause cognitive issues, muscle weakness and other problems. Here's how to make sure you're ...

This essential vitamin is generally considered safe, even at high doses. However, most people get enough B12 through diet alone, and unnecessary supplementing may lead to negative side effects.

What are the health benefits of vitamin B12? “Vitamin B12 is essential for proper neurological and metabolic functioning, including the transport of oxygen in our bodies,” Whitney English, a ...

B vitamins do a lot in the body, including helping to support your energy levels. But the B vitamin complex is large, and some of these vitamins, like B12, get more attention than others. With that, ...

Vitamin B12 plays a crucial role in the health and performance of the body. With this knowledge, people often reach for supplements at the drugstore. But how much Vitamin B12 do we actually need, and ...

Patients recently diagnosed with Parkinson’s disease that have low levels of vitamin B12 develop symptoms faster than those with higher levels, suggesting supplementation could postpone the ...

When it comes to essential nutrients, the B vitamins get a lot of attention—and rightfully so. The water-soluble vitamins help your body make energy from the food you eat and play an important role ...

Your doctor will give you the right dosage of vitamin B12 supplement, especially if you will inject it. Taking too much can cause side effects like nausea, headache, dizziness, and, in some cases ...