Protein is one of the most vital nutrients for the human body. It helps maintain the strength of muscles, skin, hair, nails, and bones. It also repairs damaged tissues and helps build new cells.

Medically reviewed by Elizabeth Barnes, RDN Key Takeaways Low protein can sometimes show up in visible changes to the face, ...

Want to feel better, have more energy, stop snacking, and build mass? Protein should be your go-to. But what happens if you suffer from a protein deficiency and don’t hit enough of it? Losing muscle ...

Why have so many people become fixated on protein? Donald Layman is one of the people behind the research showing the ...