It is a tripeptide, which is a fancy way of saying it is made of three specific amino acids: glutamine, cysteine, and glycine
J Physiol Pharmacol 61 : 6772 Rahman I, Gilmour PS, Jimenez LA, MacNee W 2002 Oxidative stress and tnf-alpha induce histone acetylation and nf-kappab/ap-1 activation in alveolar epithelial cells: potential mechanism in gene transcription in lung inflammation
Body composition changes take longer to become visually obvious 8+ weeks for most people
Thioredoxin reductases (TXNRDs) employ NADPH as an electron donor to revert oxidized TXN to a reduced dithiol, the oxidation status of which is critically implicated in regulating various cell behaviors including proliferation and apoptosis 51
Additional risk factors include having your gut operated on, pancreatic insufficiency, small intestinal bacterial overgrowth (SIBO), parasite infections, and certain autoimmune disorders