NAC certainly falls in the category as one of the most underrated supplements on the sports nutrition market. Underrated because it is not widely recognized or known in athletic circles. However, NAC is extremely effective. Now, with numerous studies to lend credibility, there is some serious science to back up its potent bodybuilding potential. "NAC may be crucial to building/preserving muscle tissue and losing body fat!" The mode of action in which NAC appears to exert its effect lies in its ability to increase glutathione levels in the bloodstream. Glutathione is one of your body's most effective antioxidants supporting the quenching of destructive free radicals. Weight training has been show to generate massive amounts of catabolic free radicals. It is these free radicals that catabolizes or breaks down muscle tissue. Studies show that NAC supplementation increases blood serum glutathione levels as high as 500% in comparison to controls. It's believed that this NAC induced increase in glutathione is responsible for many of the positive influences NAC has on preserving and increasing lean body mass.
