Dairy proteins are essential nutrients found in milk and dairy products. The two main types of dairy proteins are casein and whey. Casein makes up about 80% of the protein in milk and is known for its slow digestion, providing a steady release of amino acids. Whey protein, which accounts for the remaining 20%, is quickly absorbed and is popular among athletes for muscle recovery. These proteins are rich in essential amino acids, which are vital for various bodily functions, including muscle growth and repair. Dairy proteins also contribute to overall health by supporting the immune system and promoting bone strength due to their calcium content.