doi: 10.1093/ajcn/87.4.1087S
If you start to have muscle aches, headaches, body tenderness, and extra fatigue after taking glutathione or NAC, make sure to back down on the dosing and see if the symptoms improve
At this time, there has been no FDA announcement confirming removal of any peptide from Category 2 of the Section 503A bulk drug substances list
Cancer Risk Elevated levels of insulin-like growth factor-1 (IGF-1), which is the downstream effect of GH activity, have also raised theoretical concerns about an increased risk of cancer: According to Roberts, IGF-1 promotes cellular proliferation and inhibits apoptosis, two mechanisms that may contribute to the development of cancer cells in predisposed individuals (22)
If you want to compare glutathione with other supportive wellness articles, our How to Choose the Right Glutathione Supplement guide offers a helpful next step