glutathione 1 Supplement 1,000mg Per Serving, 98% Purity | Plus Vitamin C 500mg, Active Reduced Form (GSH) 15 Glutathione Benefits: How to

10.1126/science.8456284 33 ForristallC

Integrating advanced imaging techniques and biomarkers could also help monitor therapeutic outcomes

Specifically, the children with unusually low initial levels had a large increase in glutathione towards the average value, those children with unusually high initial levels had a large decrease towards the average value, and those with initially average values had little change

It's an ambiguity acknowledged by the review's authors, who state that more research is needed to clarify optimal amounts and to identify "sub-groups of individuals most likely to respond to particular nutrients or foods." Speaking with a doctor is your best first-line action to determine whether you could benefit from swapping dietary glutathione for a supplement, or vice versa