Self-medicating with vitamin B12 without a doctor’s guidance is not a good idea. Even though B12 is water-soluble (meaning excess amounts are usually flushed out in urine), taking more than your body ...

QUESTION: Hi Dr. Zac, am I being hoodwinked into buying vitamin supplements, or do they actually work? I’ve been feeling constantly tired despite getting enough sleep, and I suspect I might be low on ...

Your body needs arginine, more commonly known as L-arginine in supplement form, to carry out several important functions. It’s an amino acid that helps build proteins. It’s especially important for ...

Vitamin B12 is an essential nutrient that's often overlooked. Also known as cobalamin, vitamin B12 helps your body produce vital red blood cells and boost your energy levels, among other things.

Vitamin B12 is an essential nutrient for good health. Some of the best sources of vitamin B12 include meat, fish, eggs, fortified foods, and supplements. It may also be advisable to limit or avoid ...

Medically reviewed by Jonathan Purtell, RDN Key Takeaways Vitamin B12 supports energy, red blood cell formation, nerve function, and DNA production.A deficiency can cause fatigue, weakness, headaches, ...

L-arginine is one form of arginine, an amino acid that is one of the building blocks of protein. Arginine is a non-essential amino acid because most humans can make it in their bodies. Infants and ...

Your body needs vitamin B12 for maintaining metabolism, producing DNA and red blood cells, keeping the nervous system healthy, and more (1, 2). Fortunately, most people get enough of this ...

If you follow a Vegans or vegetarian diet, making sure you're getting enough vitamin B12 is vital. This organic compound plays many important roles in the body, from making DNA to maintaining the ...

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, ...