What is high-quality protein?

Ms. Ashley Koff, RD

Nutrition & Dietetics

Proteins are found in both animal and vegetable sources. However, each food source contains differing varieties and amounts of amino acids, which are the individual chemical units that comprise proteins. In other words, amino acids are the building blocks of proteins. The terms complete protein or high-quality protein are used to refer to those proteins that provide all of the essential amino acids in a proportion needed by the human body. A couple of the essential amino acids play a critical role in feeding the mitochondria, the energy units of cells.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.

Protein

We hardly ever eat straight protein, but get it from foods like meats, fish, and soy, along with fats and carbohydrates in a protein package. Almost all reasonable diets provide enough protein for your body to break down into the building blocks knows as amino acids. Recent interest in protein has been created by studies showing that diets high in protein and low in carbohydrates are at least as effective as low fat higher carbohydrate diets. Severe lack of protein can cause malnutrition diseases, but there is little evidence that high levels of protein do anything harmful.

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