Probably one of the most asked questions I get whether online or in the gym. I dont vouch for very many companies but when I find something that works I try to share the word. I have a BAD stomach and Synthepure is easy and gentle,,no discomfort,,no nasty gas,,just great nutrition and new muscle gains.
http://www.synthetek.com/products/synthepure-whey-protein-isolate/
http://www.synthetek.com/products/synthepure-whey-protein-isolate/