The global whey protein market size was estimated at USD 8.8 billion in 2020 and is expected to expand at a compound annual growth rate (CAGR) of 9.9% from 2021 to 2027. Whey protein is globular proteins mixture that is isolated from whey, which is the liquid by-product obtained from cheese production. Whey protein is used as dietary supplement and is attributed as alternative medicines for many health issues. Whey is the leftover product obtained by milk coagulation during cheese production, which consists of all substances soluble from milk after the pH 4.6. Whey is a 5% solution of lactose in water along with lactalbumin and minerals. Global whey protein market is expected to gain traction due to its wide range of benefits like diet supplement, anti-cancer capacity, fat loss, immune booster, stress reducer. Owing to the high scope of benefits, U.S. FDA has regulated the usage of whey protein to 2g per day. Because of its extensive availability, high amino profile, and easy digestion, the product is favoured by manufacturers of sports nutritional products. As a result, producers should expect profitable prospects in the next years as demand for sports nutritional supplements grows. Because it can substitute high fat and expensive components like milk, butter, and cream cheese while preserving the same flavour, texture, and look as the original formulations, food and beverage firms in the United States are including functional whey protein in their packaged meals. Whey protein market is expected to expand at robust CAGR due to consumer inclination towards fitness and increase in health clubs, fitness and health awareness campaigns etc.