L-Theanine Side Effects & Adverse Reactions (List)
L-Theanine is a non-essential amino acid derived from the Camellia sinensis plant species. It was first discovered circa 1950 in which it was noted within the contents of green tea; it serves as a “building block” for proteins and is also present in other types of tea (e.g. black tea). For generations L-theanine has been …