Berberine (Alkaloid) Containing Herbs (Goldenseal, Barberry, Goldthread)- is a potent antioxidant and anti-inflammatory known to protect against glutamate. Heads up it also lowers*** blood sugar and can help with fatty liver and SIBO “Berberine protects against glutamate-induced oxidative stress and apoptosis in PC12 and N2a cells” https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5478787/ “Berberine Inhibits the Release of Glutamate in Nerve Terminals from Rat Cerebral Cortex” http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0067215