GABA (Gamma-Aminobutyric Acid) tea is made by steeping tea leaves that have been treated with nitrogen gas to increase the levels of GABA in the tea.
GABA tea is a type of tea that can help to have calming and relaxing effects due to its high levels of GABA. GABA is a naturally occurring neurotransmitter in the brain that helps regulate nerve activity and is involved in reducing stress and anxiety.
The definition of GABA tea is that every 100 grams of dry tea must have 150 mg or more of γ-aminobutyric acid (GABA).