Whey protein is an amalgamation of serum albumin, alphalactalbumin, beta lactobumin and pH and biological value of this product is very high. Whey proteins are very good for fighting against diseases and it digests very easily. It is an essential nutrient for maintaining a healthy body and it is known as building blocks. It repairs and builds body cells, bones and muscles. As per sex, weight, age and overall health, need of protein varies. Protein needs of dieters, body builders, athletes, etc., are high compared to normal people. Whey proteins are rich sources of chain amino acids such as valine, isoleucine and leucine. It is beneficial for recovering from stress and it lowers risk of cancer. It is also beneficial for protecting body from toxin and radical damage. It is very effective for weight loss, building muscles, maintaining blood sugar level, etc.