“Metabolic profiling found … exogenous application of GABA led to increases in accumulations of amino acids (… acid, aspartic acid, alanine, threonine, serine, and valine ), organic acids (aconitic acid, malic acid, succinic acid, oxalic acid, and threonic acid), … (sucrose, fructose, glucose, galactose, and maltose), and sugar alcohols (mannitol and myo-inositol).”