The other half were given weekly injections of increasing amounts of semaglutide: 0.25 mg for 4 weeks, then 0.5 mg for 4 weeks, and then 0.5 or 1 mg in the last week, depending on a doctors judgement
In this case, you are essentially just taking an expensive amino acid supplement rather than getting the full benefit of the intact glutathione molecule
Dalmasso G, Charrier-Hisamuddin L, Nguyen HT, Yan Y, Sitaraman S, Merlin D PepT1-Mediated Tripeptide KPV Uptake Reduces Intestinal Inflammation Gastroenterology (2008) 4
Indeed, I myself working with elite triathletes such as Alan Ingarfield (at the time one of the fastest UK Ironman athletes in his age group) - believed that carnitine could enhance performance and in 1993, I suggested it helped athletes in several ways, including increased fat metabolism and faster recovery (2)