As an example, asparagus and watermelon will make glutathione.
One thing that has been overlooked by many still is the role of glutathione within the liver as well as the role of glutathione transporting a toxin to the liver. There is considerable more to glutathione than having it in the cells.
The whey proteins mentioned on this site do make intracellular glutathione. However, like most other things in life, not all things are equal.
When you need intracellular glutathione quickly, the best method and safest method is with a whey protein. We have reviewed the top selling whey proteins. One whey protein stands so far above all others it is amazing.