GABA (gamma-aminobutyric acid) is a substance produced by the body. It is a non-proteinogenic amino acid, meaning it is not used for building proteins in the body. It is a non-essential amino acid that is also available as a dietary supplement.

No, GABA is a separate substance. It is sometimes confused with L-theanine or glutamate, but they are different compounds, each with their own structure.

It is recommended to take this supplement on an empty stomach, mixed with water or juice. Taking GABA on an empty stomach (preferably at least an hour before or two hours after a meal) ensures better absorption.

The GABA in supplement form is usually produced via a fermentation process. It does not come directly from a natural source like a plant or animal.