glutathione content in foods mg per 100g 11 Whole to Support — Functional Health Research + Resources — Made Whole Nutrition Glutathione- The Ultimate Antioxidant —

Cysteine requires two more enzymatic reactions before being finally converted into glutathione

Additionally, in a study in India that enrolled over 5600 individuals, a strong association was found between high serum vitamin C levels and low incidences of cataract (Ravindran 2011)

Proc Amer Assoc Cancer Res 47:4643, 2006

doi: 10.1002/iub.319 82 LimaT

Re-assessment of the influence of polymorphisms of phase-II metabolic enzymes on renal cell cancer risk of trichloroethylene-exposed workers

The American Society for Metabolic and Bariatric Surgery recommends that patients who have had bariatric surgery take 1 mg of oral vitamin B 12 per day indefinitely