Drinking skimmed milk for normal people will not cause harm and side effects to the body, but people who are malnourished, extremely thin, etc. may have incomplete nutritional supplementation if they drink skimmed milk. The main difference between skimmed milk and normal milk is the fat content. Skimmed milk has a lower fat content than normal milk, and the fat-soluble vitamins will be relatively reduced. Normal people who drink skimmed milk in moderation generally will not cause harm to the body and side effects, but long-term malnutrition, extreme wasting, weak people, long-term drinking skimmed milk, may lead to insufficient intake of fat and fat-soluble vitamins in the body to achieve the purpose of supplementation of nutrients, and some people will be nutritional intake is not balanced. Skimmed milk is mainly suitable for hyperlipidemia, obesity, acute pancreatitis or need to control the fat intake of patients, it is recommended that ordinary people do not blindly superstitious low-fat milk.