does oral glutathione whiten skin as a whitening agent: Facts, myths, evidence and controversies Best Glutathione for Skin Whitening

Gut-derived indoles and other microbial metabolites may affect vascular and myocardial biology but also reflect diet and intestinal ecology (62)

The kidneys may retain more sodium and water

Severe deficiency can contribute to fatty liver changes, which is one reason choline gets framed as liver support. Details are summarized in the NIH ODS Choline fact sheet for health professionals

Safety Profile When administered by qualified healthcare providers in sterile settings and at appropriate doses, IV glutathione is considered safe

The transcriptional activation of genes encoding other enzymes of the PPP also occurs in response to oxidative stress and the demands of increased anabolic metabolism