nih study glutathione Enhancing the Oral Bioavailability of Using Innovative Analogue Approaches NAC vs Glutathione: Differences &
Description
J Biomed Sci 24(1):78

Several features enabled us to distinguish severe from moderate IPTB, for instance higher levels of total sulfur amino acids (AAs) ( P 0.05), and total glutathione-precursors ( P 0.03), as well as levels of individual methionine ( P 0.03), homocysteine ( P 0.002) (whereas the difference in cysteine was not significant, P 0.09), and serine ( P 0.04) in maternal blood at delivery, mainly in placebo arm

It may help reduce oxidative stress, which occurs when theres an imbalance between free radicals and your bodys ability to fight them off

This creates a cycle where the kidneys are under more stress but have fewer tools to handle it
