I use "ON Gold Standar Natural Whey, vanilla", which is "Optimal Nutrition" that has an added enzyme to digest the whey...but I am not sure how that works for a NON lactose intolerant. I am lactose intolerant, and I have been drinking this stuff for about 5 years now, cause it is the only thing that doesn't upset me. Soy, well, it is a bean...
the other thing about ON, is that is uses natural sweeteners, so, no aspartame, etc.