1. Full-fat milk contains high fat, usually around 3%, which makes it more mellow and rich in taste. In contrast, pure milk has a low fat content, so it tastes lighter.

2. Full-fat milk is rich in fat-soluble vitamins, such as vitamins A, D and E, due to its high fat content, which is very important for the healthy development and physiological function of human body. In contrast, although the fat content of pure milk is low, it still retains protein, minerals, calcium and other nutrients in milk, which are essential for maintaining bone health and dental health.

3. Because of its rich taste and nutrition, whole milk is more suitable for people who need high fat intake, such as children, teenagers, pregnant women and some healthy middle-aged and elderly people. By drinking whole milk, these people can meet the body's needs for various nutrients, promote growth and keep healthy. Pure milk is more suitable for people who need to control their fat intake, such as dieters and patients with cardiovascular diseases.