Ok cool, thanks for clearing that up, Kiwi. I had no idea about the details of those digestive functions.

Interesting that i managed to find so much reference to undenatured whey being 'the only whey' you should consume for glutathione production, when its clearly nonsense. I guess i should do my biology homework more often

One further question regarding Glutathione and SFN: do you think that an increase in production would have any benefit on SFN? Or should i just dismiss the whole idea?