Allergy Research Group200 mg of Zen

L-theanine is an amino acid that naturally occurs in green tea (Camellia sinensis). It is especially valued because of its unique combination with caffeine in tea, but is also available in isolated form in supplements.

No, L-theanine is not an essential amino acid. This means the body does not necessarily need to obtain it from food, as is the case for essential amino acids. It is also not common in standard foods, except in tea.

Suntheanine® is a patented, pure form of L-theanine that is produced through fermentation. In green tea, L-theanine occurs naturally, but in smaller amounts and always together with other substances such as caffeine. Supplements with Suntheanine® contain only L-theanine in a set quantity.

The main natural source of L-theanine is green tea. It also occurs in smaller amounts in other types of tea, such as white and black tea, but is rarely found in other foods.

GABA stands for gamma-aminobutyric acid. It is a non-essential amino acid that is also found in fermented foods such as kimchi, miso, and certain types of yogurt. In supplement form, it is often added in fixed amounts.

No, GABA is related to glutamine and glutamate, but they are three different substances. They are sometimes used separately in foods and supplements, depending on the purpose of the formula.

Yes, GABA naturally occurs in fermented products such as fermented vegetables, yogurt, and certain teas. The amounts in food are usually small and variable.