GABA stands for gamma-aminobutyric acid, a type of amino acid that is not used as a building block for proteins. It is a so-called “non-proteinogenic” compound, which means it has a different role than standard amino acids such as lysine or leucine.

Gamma-aminobutyric acid is the chemical name for GABA. It is a small molecule consisting of four carbon atoms, an amino group, and a carboxyl group. The term "gamma" refers to the position of the amino group in the molecular structure.

Many amino acids, including GABA, are better absorbed when they are not taken with a large meal. By using the supplement on an empty stomach — for example, between meals — the absorption of the active substance is not disrupted by other nutrients.