It’s A Good Source Of Quality Protein

Milk is a high-protein food, with one cup providing 8 grams. Protein is required for a variety of bodily functions, including growth and development, cellular repair, and immune system regulation.

Milk is a "complete protein", which means it includes all 9 of the key amino acids your body requires to function properly. Casein and whey protein are the two main types of protein found in milk. Both of these proteins are regarded to be of high quality. Casein is the main protein found in cow's milk, accounting for 70–80% of the total protein content. Whey makes up around 20% of the total. The branched-chain amino acids leucine, isoleucine, and valine, which are all linked to health benefits, are found in whey protein. Several studies also have linked drinking milk to a decreased risk of age-related muscle loss. In fact, higher consumption of milk and milk products has been linked to greater whole-body muscle mass and better physical performance in older adults.