How many types of amino acids are there?
The human body's proteins are made up of 20 amino acids. Nine of the twenty
amino acids are considered essential, while the remaining nine are
considered non-essential. The amino acids known as essentials are
those that the body is unable to manufacture on its own and must
be obtained from food. Since the body is capable of producing them,
nonessential amino acids do not need to be consumed through diet.
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