Milk is made of two proteins—casein and whey. Whey protein can be separated from casein or formed as a by-product of cheese making.
Whey protein is considered a complete protein and contains all 9 essential amino acids. It is also low in lactose content. It can help you build muscle, support muscular recovery, and maintain muscle when training to lose fat. It is of high-quality, highly bio-available, and fast-digesting.
READ about whey protein, in detail, to get a better understanding.
Whey protein concentrate is one of the most popular and cost-effective forms of whey protein. It can be up to 90 percent protein by weight. It is the basis of many protein blends and other recovery supplements.
Whey protein concentrate can be taken nearly any time of the day, but it's especially helpful after an intense workout. Most experts agree that post-workout protein is critical to kick-start muscular repair, recovery, and growth.