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Essential Amino Acids

The 9 amino acids your body needs but cannot synthesize, and thus must consume through your diet, are called essential amino acids. A protein is said to be complete when it has enough of each EAA.

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Summary of Essential Amino Acids

Primary Information, Benefits, Effects, and Important Facts

Proteins are composed of amino acids, some of which your body can synthesize and others not. The ones you need yet cannot synthesize, and thus need to ingest, are called essential amino acids (EAAs). Among those, branched-chain amino acids (BCAAs) are crucial to your muscles,[1] with leucine being especially anabolic.

A protein is called complete when, proportionally to its overall amino-acid content, it has enough of each EAA (as shown in the “mg/g of protein” column in the above table). The main advantage of animal proteins is that most are complete.

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