L-Glutamine has a proven support on liver regeneration.* (1) It is commonly used as a digestive aid, and acid reflux is a common symptom that it relieves.*
L-Glutamine is typically contraindicated in persons with liver disease, although OKG which has similar beneficial effects is not.*
 Magalhães CR, Malafaia O, Torres OJ, Moreira LB, Tefil SC, Pinherio Mda R, Harada BA. Liver regeneration with l-glutamine supplemented diet: experimental study in rats. Rev Col Bras Cir. 2014 Mar-Apr;41(2):117-21.