Chen Z, Zhang D, Yue F, Zheng M, Kovacevic Z, Richardson DR
In controlled studies, glutathione supplementation increased peroxisome proliferator-activated receptor- coactivator-1 (PGC-1) protein levels by 25% and mitochondrial DNA biogenesis by 53% in skeletal muscle, indicating enhanced mitochondrial function supporting exercise capacity
L-glutamine supports the health of the digestive tract, while glutathione provides systemic antioxidant support and liver protection
doi: 10.1096/fj.201802534RR
Moreover, an increase in fibrogenic cells could further exacerbate muscle pathology by contributing to tissue fibrosis
Though the two molecules target the same receptor and share a similar chemical structure, there is enough laboratory evidence to distinguish their effects on the receptor, hormone levels, appetite control and scientific applications