Protein is an essential macronutrient, but not all food sources of protein are created equal, and you may not need as much as you think. Learn the basics about protein and shaping your diet with healthy protein foods. Getting enough protein daily is essential for your overall health.

Understanding the Context

Healthy protein sources include eggs, nuts, lean meats, fish, dairy, and certain grains. Four different structures of protein serve to influence specific protein activities. Different sequences of amino acids form different shapes and thus, different proteins. Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.

Key Insights

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 than needed, with dietary guidelines suggesting about 6.5 ounces per day for men and about 5 ounces for women. Proteins are essential for life and are essential for a wide range of cellular activities. Protein enzymes catalyze the vast majority of chemical reactions that occur in the cell.

Final Thoughts

Proteins provide many of the structural elements of a cell, and they help to bind cells together into tissues. 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 body. There is a wide range of high-protein foods. These can include various fruits and vegetables, dairy products, meat, seeds, and more. Getting enough protein on a daily basis is essential for your... Protein is an important part of a healthy diet.

Proteins are made up of chemical 'building blocks' called amino acids. Your body uses amino acids to build and repair muscles and bones and to make hormones and enzymes. They can also be used as an energy source.