How are amino acids (EAA/BCAA) different from protein?

Amino acids are the building blocks that make up protein. EAA (essential amino acids) and BCAA (branched-chain) supplements provide them in a pre-broken-down form that's quick to absorb without waiting on digestion. But if you already get enough protein, they aren't essential and the roles overlap — if you use both, watch the combined total.

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