Category: L theanine

L-theanine is an amino acid found almost exclusively in the tea plant, and it is most abundant in shade-grown varieties like matcha and gyokuro. However, not all matcha contains the same concentration of L-theanine, as its level is directly tied to the tea's cultivation and quality.

According to a 2017 review, Lipton's specially formulated Natural Energy tea contained 20 mg of L-theanine per serving. This is one of the few specific figures available, so how much L-theanine is in Lipton tea across its more popular product lines, such as its black and green teas?

While many dietary supplements can cause gastrointestinal upset, research indicates that L-theanine does not function as a typical laxative or diuretic. This article explores the nuanced relationship between L-theanine and your bathroom habits, from potential digestive discomfort to its effects on bladder function.

While the FDA recognizes L-theanine as “generally recognized as safe” (GRAS) for its use in food, some individuals may still experience adverse reactions. This guide will explain what are the side effects of taking L-theanine, detailing potential mild risks and crucial medication interactions to be aware of.