Adding a protein powder smoothie to your diet can help you lose weight and tone up. Whey protein powder is made from the protein fragment that separates from milk during cheese production. It is a complete protein, meaning it contains all of the essential amino acids that are the building blocks for production of protein in your body. Your muscles are made of protein, but protein is also required for the production of some hormones, enzymes, your skin, hair and nails. Whey protein is extremely easy to digest, therefore it is wonderful for people with digestive problems such as irritable bowel syndrome (IBS), celiac disease, bloating or reflux. The fact that it’s easy to digest also makes it a convenient pre-workout meal because it won’t weigh you down or make you feel heavy or bloated afterwards. As we all get older we lose muscle. Apart from a reduction in strength, it also means your metabolism slows down. Muscle is a very metabolically active organ, and people with bigger muscles have a faster metabolism. Consuming whey protein after a workout enables more efficient muscle repair and helps muscle fibers to grow larger. This is mostly because whey is high in the amino acid leucine, which is the most anabolic (growth promoting) type of protein. Whey also helps to increase satiety. Because it is a complete protein, it is incredibly filling. Having a whey protein smoothie for a meal should leave you feeling full for many hours. Studies have shown that having whey protein as a snack reduces food consumption later on in the day and leads to eventual weight loss. If you are trying to lose weight it is important to eat healthy foods in appropriate quantities and get some regular exercise. Adding whey protein to your diet can make that easier. Reference