difference between soy and whey protein powder
Soy Protein vs. Whey Protein - Everything You Need to Know The soy protein powder can be used to make a protein shake or to add protein to other meals. Although soy protein isolate is naturally high in protein but very low in carbohydrates, many manufacturers add additional nutrients to commercial soy protein to improve its taste, texture, and nutritional value. Soy Protein vs. Whey Protein - Everything You Need to Know Whey protein, on the other hand, is made from cowâs milk. Cowâs milk naturally contains about 3.5% protein and 4% fat (MyProtein, 2014). After being pasteurized to kill any bacteria, special enzymes are added to the milk to separate casein -- the milk solids that are used to make cheese -- from the whey.