Which supplements assist with concussion recovery? MHCG Concussions: The Hidden Connections to Dysautonomia, Gut Health, and Mental Well Being Axon Integrative Health LLC What is the appropriate glycine dosage and treatment duration for an adult following a concussion, assuming normal renal and hepatic function and no known hypersensitivity? The cysteine rich whey protein supplement, Immunocal, preserves brain glutathione and improves cognitive, motor, and histopathological indices of traumatic brain injury in a mouse model of controlled cortical impact ScienceDirect