Randomized Clinical Trial of How Long-Term Glutathione Supplementation Offers Protection from Oxidative Damage and Improves HbA1c in Elderly Type 2 Diabetic Patients

This randomized controlled trial evaluated the effects of long-term oral glutathione (GSH) supplementation on oxidative stress and glycemic control in 250 type 2 diabetic (T2D) patients compared to 104 healthy controls. Over six months, participants receiving 500 mg of daily GSH experienced significantly increased blood GSH levels and reduced oxidative