glutamate to glutathione and antioxidant pathways. Glutathione (GSH) is synthesized The production of glutathione results
Description
supporting the body's immune response and helping to defend against infections and illnesses
Reports that newborns with a complete lack of insulin effects due to inactivating defects in the INSR gene can now survive for extended time into adolescence when treated with recombinant IGF-I, that stimulate glucose uptake via the IGF1R sharing common signaling pathways with the INSR, support an important direct role of IGF-1 signaling on metabolism (93)

Quick Answer: The best time to take glutathione is on an empty stomach

They are simply different concentrations
