Foods that either contain glutathione or provide the building blocks (especially sulphur-rich foods) include: Sulphur vegetables: garlic, onions, broccoli, cauliflower, cabbage Cruciferous greens: spinach, kale, methi Fruits: avocado, oranges, tomatoes Protein sources rich in cysteine: eggs, legumes, dairy How to increase glutathione naturally Beyond food and supplements, these habits support healthy glutathione levels: Prioritise sleep your body repairs and replenishes overnight Exercise regularly moderate activity supports antioxidant systems Eat sulphur-rich foods (see above) Get enough vitamin C, selenium, and B-vitamins cofactors for glutathione Cut alcohol and quit smoking Consider a quality supplement if diet and lifestyle alone aren't enough How to choose a glutathione supplement Not all glutathione products are equal

A marked (3.6-fold) elevation of GST activity was found in infected leaves of a very susceptible barley cultivar, while the GST activity increased only to a much lesser extent in moderately susceptible and resistant cultivars
Lillig, C.H
Using Epstein-Barr virus we have immortalized lymphocytes from controls and from patients with essential hypertension that exhibited enhanced sodium-proton exchanger activity