Yes, whey protein powder is a complete protein, meaning it contains all of the essential amino acids in sufficient amounts. It is derived from milk and is one of the two primary proteins found in milk, the other being casein. Whey protein is a fast-digesting protein and is one of the most popular protein supplements on the market. It is commonly used by athletes and bodybuilders due to its high biological value, which measures how well the body can utilize a protein.
Whey protein is also rich in branched-chain amino acids (BCAAs), which are important for muscle growth and recovery. In addition, whey protein is a good source of glutathione, a powerful antioxidant that helps to support the immune system.