1, efficacy and function: Fat emulsion can provide patients with a stable energy source, especially when the gastrointestinal tract can't work normally, such as nutritional support for critically ill patients after operation. Essential fatty acids are important nutrients that cannot be synthesized by human body and must be ingested through food. Fat emulsion can provide these essential fatty acids and help maintain normal physiological functions of human body. For children and adolescents, fat emulsion can be used as a part of intravenous nutrition to help them get the nutrition they need for growth and development.

2. Side effects: Some people have allergic reactions to the ingredients of fat emulsion, such as rash and urticaria. Excessive or long-term use of fat emulsion leads to fat overload syndrome, such as hyperlipidemia, fever, fat infiltration, organ dysfunction and so on. Fat emulsion affects electrolyte balance, leading to electrolyte disorder, and long-term or large-scale use of fat emulsion leads to abnormal liver function.

3. Fat emulsion is a medical medicine, which is mainly used to provide energy and essential fatty acids to support patients who can't get enough nutrition through normal diet. It is an emulsion for injection, and its main components include soybean oil and lecithin, and sometimes medium-chain triglycerides are added.