Hello, I'm new to this list, but a devoted fan of Paleo eating. At 42, I'm recovering from the 'rewards' of decades of milk products and cereal grains in the form of fatigue, allergies, tendonitis and weight gain. Weight training has turned the weight around, but I have been using whey isolate powder. I see from the archives that whey protein is probably as bad as any other milk product in terms of mobilizing mucous and stuffing the sinuses. If you were trying to build muscle, would you use a protein supplement, and if so, what kind? From my research, soy is out of the question (lectins). -Lou Huis