I have tried every type of protein supplement out there, but all of them caused bloating and gas, and even adult acne! I never noticed it immediately, but after taking most protein powders for a few days, the symptoms would appear. Adrofuel is the first whey protein I have ever tried which had no uncomfortable effects! I tried the plain rice protein, but it tasted like cardboard. Adrofuel tasted phenomenal with almost every protein shake recipe I like! As a natural, vegetarian protein, this is the best protein meal replacement available.