. Nutritional value is different. Whole milk, its nutrients are close to pure milk. Skimmed milk is in order to taste good and the milk in many nutrients are filtered out, so the nutritional content of skimmed milk than whole milk is much lower, and is not conducive to the healthy growth of the human body. 2. Whole milk has a high calorie content and is more suitable for young children, pregnant women or people with a high level of physical activity. Skimmed milk is more suitable for people who limit their fat intake or are trying to lose weight. Whole milk and skim milk, both contain a lot of vitamins and calcium substances, to meet the body's needs, bring sufficient nutrients, but whole milk, containing fat content is more, drink more will cause a certain risk of high blood pressure disease, so the elderly try to and skim milk, and skim milk in the fat content of less, but in the degreasing of a certain part of the Vitamins will also follow the loss of, so the children drink full-fat better, the amount of nutrients to supplement is not the same, should be able to drink.