Long-lasting treatment suppresses HIV in people with mental illness and other conditions that make it challenging to adhere to standard treatments.

While fortified nutritional yeast provides B12 and is a good addition to a vegetarian diet, fortification levels vary widely ...

Vitamin B12 is an essential nutrient found mostly in animal foods. One large scrambled egg provides about 0.5 micrograms (mcg) of the nutrient—which is about 20% of the recommended daily value.

Foods like crab, trout, salmon, and clams are high in vitamin B12. These and other B12-rich foods can offer health benefits.

Think twice before your next IV drip. Learn why injecting common vitamins can be dangerous and what the hidden risks are.