The difference between lipids and fats lies in the different nature, different chemical structure, different production and source. 1. Different nature: lipids are one of the important nutrients needed by the human body, supplying the energy needed by the body, providing the essential amino acids needed by the body, and are the components of human cells and tissues; fat is composed of glycerol and fatty acids, triglycerides. 2. Different chemical structures: lipids, including fats and lipids, are composed of C and H elements with non-polar covalent bonds; fats are composed of C, H and O elements. 3. Different generation and sources: Lipids are caused by lipid deposition in the blood vessel wall after the body eats more high-fat food for a long time, forming plaques in the blood vessels of the human body; fats are derived from animal bodies, plant fruits, nuts, eggs, etc., such as lard, sesame, egg yolks and so on. If abnormalities of lipids and fats are found, timely hospitalization is recommended to avoid delays.