Tag: Protein vs vitamins

Over 90% of ingested protein is absorbed and used as amino acid monomers, whereas vitamins are absorbed intact. This is a key difference between protein and vitamins, as they serve fundamentally distinct roles in supporting the body's growth, repair, and metabolism.

According to the National Institutes of Health, there are six major classes of essential nutrients required for human health, and protein is a distinct category, separate from both minerals and vitamins. The simple and direct answer to the question, "Is protein a mineral or a vitamin?" is that it is neither.