Allergy Research Group L-Glutamine Powder 200gramsAllergy Research Group L Glutamine Powder is a dietary supplement for amino acid support. L Glutamine is a naturally occurring, free form amino acid that is an essential building block of protein. It supports hormone production, provides fuel for the cells for energy and is found in the epithelial lining of the gastrointestinal tract. It has the ability to penetrate the brain barrier so energy can be provided to brain cells. Supports Energy Supports