Lipid is a group of molecules that contain fat, wax and steroids. When lipids maintain the health and function of the body, they have multiple functions. When carbohydrates, proteins, and fats break down during oxidation, the human body gains energy. Fat is the energy reserve in the body, which can keep the body warm. These fats are just the accumulation of lipids, these lipids are notSoluble molecular organic compounds composed of carbon and hydrogen. They are an integral part of the list of organic compounds. The main lipid functions include the development of cell membrane and energy storage. Lipids are present in animals and plants. They have higher energy reserves than carbohydrates and proteins. A gram of fat produces 9 kilocalories; However, a gram of carbohydrates and protein produces 4 kilocalories. Therefore, lipid reserves containing 100,000 calories of energy can maintain the human body for many days with sufficient water and very little food. They account for 24 pounds of the weight of 154 pounds. Due to the energy generated by the lipid, many migratory birds and dormant animals survive in difficult conditions. All fat is fat, but not all fat is fat. Here we will discuss several types of lipids, their structure and function. The three-acid gan oil molecules include a molecule of glycerin and three-component fatty acids (saturated or unsaturated ). This lipid was found as a drop in the cell pulp. It is also non-polar and non-soluble. That's why the three-acid ester of glycerin floats in the cell pulp (because they are less dense than water ). It is called fat if the triacid ester of glycerin is solidified at 20 °c. They are called oil if they remain liquid. The higher the concentration of unsaturated fatty acids in glycerin triacid ester, the lower the melting point. The main use of the human body is energy storage. Steroids are composed of carbon molecules with four fused ring structures. They do not contain fatty acids. Examples of steroids are estrogen, vitamin D2, testosterone, and cholesterol. They play an important role in forming plasma membrane structures and affecting their permeability. The lipid is water-containing-Molecules of a hydrophilic (water attraction) structure. They are mainly composed of phosphate groups, so they are named. When they come into contact with water, they immediately obtain an ordered molecular structure. They mainly form the membrane of the cell. These are formed by short sugar chains. They are prominently found on the outer plasma surface of our body's cell membrane. They're mainly responsible for cells-to-Cells Identify and enhance the body's immune system. The combination of lipids and proteins found in the cell membrane is known as lipids. The best examples in our body are enzymes, antigens, and structural proteins. There are two kinds of lipids in our body: high-density and low-density lipids that make the fat content flow in the blood. Wax contains fatty acids bound to long chain alcohol. They are found on the leaves of plants, in human ears, on the feathers of animals. Lipid acts as a protective half-transparent layer to protect the cells of the body. Just because of the lipid, our bodies can work and maintain themselves even under tough conditions. In fact, when we are prone to illness and cannot consume too much food, they release energy reserves to maintain a weak body. Their main function is the membrane formation of body cells. Each cell that makes up the plasma membrane is composed of a semi-permeable lipid double layer. Therefore, they are mainly responsible for maintaining the integrity of the cells and protecting the internal cell organs. Cholesterol is a kind of cholesterol that exists in our body and is also composed of lipids. Even cholesterol is classified as high-density and low-density. Both proteins indicate good health at an ideal level (ideally 200 mg for 1 liter of blood ). However, high levels of high-density cholesterol can lead to high cholesterol risk and cardiovascular disease. Therefore, it is recommended to check the cholesterol level once every 3-15 years. Unsaturated fats such as vegetables, grains and nuts are better than saturated fats (meat and dairy products. This is for reference only and should not be used as a replacement for expert medical advice.