Review on 🥩 Premium Paleo Beef Protein Powder - Bone Broth & Dairy Free - Keto Shake (1kg - 2.2 lbs) by BulkSupplements.com by Robert White

. This is basically boiled cowhide with many other by-products added. Skin is mostly collagen, and collagen is NOT a complete protein (no tryptophan at all) and overall analysis shows it is a very low tryptophan protein. Don't rely on it as your only source of protein! Now for the aesthetic qualities of this material: when I opened the package, I was stunned by the smell of a slaughterhouse. Blood, guts, feces, brain tissue, guts and dirt. It was the smells that attacked my olfactory system. If I were in the Andes in a plane crash and had to choose between cannibalism and this, I'd have to think about it for a while. It's disgusting.