What Are Proteins? Definition, Types & Examples
Jun 24, 2025 · People generally say “protein” (or “dietary protein”) when talking about nutrition and “proteins” when discussing the science of how the individual molecules work within your …
Protein: What It Is, Types, Uses, Needs, Deficiency
Oct 11, 2025 · Proteins are large molecules made up of chains of amino acids that are important for cell function, tissue structure, and body regulation. Most people in the U.S. consume more …
Protein | Definition, Structure, & Classification | Britannica
Nov 29, 2025 · A protein is a naturally occurring, extremely complex substance that consists of amino acid residues joined by peptide bonds. Proteins are present in all living organisms and …
Protein - Wikipedia
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.
Protein - The Nutrition Source
Protein is made from twenty-plus basic building blocks called amino acids. Because we don’t store amino acids, our bodies make them in two different ways: either from scratch, or by …
What Are Proteins? Protein Definition, Functions, Examples
Dec 13, 2017 · Learn about proteins, a large class of biological molecules. Discover their structure and function and get protein examples.
What Protein Does for Your Body and If You're Getting Enough
May 14, 2025 · Proteins are made up of amino acids and are found in every cell of the body. Protein is essential for bone, muscle, digestive and metabolic health. For optimal health, enjoy …