One of the tips I'd give to guys and girls that regulary use a whey protein powder (or even a whey protein blend) is to rotate it every so often with a beef protein powder. The main reason being, whey can be quite allergenic. Some individuals can't take whey for this reason right from the outset. Like whey, beef will still deliver those all important amino acids for muscle growth, repair and recovery. The main difference is, unlike whey, beef protein's digestion takes place in the stomach. This avoids the swelling sensation that is commonly associated with whey digestion that takes place in the intestine.
I regularly rotate between these two awesome products....
Impact whey protein
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