Increasing gamma-aminobutyric acid (GABA) and balancing glutamate, brain chemicals called neurotransmitters, may help alleviate symptoms of fibromyalgia (FMS) and chronic fatigue syndrome (ME/CFS).

Because the subtraction was assumed to be perfect, only those metabolites with resonances close to 1.9 ppm were included in the simulations: GABA, glutamate (Glu), glutamine (Gln), glutathione (GSH), ...