What are Quality Proteins?

Quality protein relates to the ability of a protein source to support healthy growth, development, and maintenance of body mass. To be considered a "high-quality" or "complete" protein, a protein must contain all the essential amino acids (or building blocks of proteins) in the right proportion and be easily digested.

Animal-based foods (meat, poultry, fish, eggs, and dairy foods) tend to be good sources of complete protein, while plant-based foods (fruits, vegetables, grains, nuts, and seeds) often lack one or more essential amino acid. With the exception of soy - which unlike most other plant-based proteins, contains all of the essential amino making it one of the very few complete plant protein sources.

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