Whey protein is protein extracted from milk, so of course it is animal protein. Only 7 grams of whey protein can be extracted from 1,000 grams of milk. Whey protein has low fat content and is easy to absorb. Moreover, because it is animal protein, it can supplement the human body with a wider range of amino acids, so it has always been favored by fitness people. When purchasing whey protein, we recommend PQfitness.