What are lipids?

Fats, also called lipids, together with carbohydrates, represent the largest source of energy for the body. Discover what lipids are and if they are really bad. What are they? As in the case of proteins, there are essential and non-essential fats. The essential ones are those that the body cannot synthesize, and they are: linoleic and linolenic acid, although they are not normally absent from the body since they are contained in meats, cold cuts, fish, eggs, etc. Biochemically, fats are nonpolar substances and are therefore insoluble in water. This apolarity is due to the fact that its molecules have many carbon and hydrogen atoms linked in a pure covalent way and therefore do not form dipoles that interact with water. We can conclude that lipids are excellent insulators and separators. Fats are made up of fatty acids. In general terms, we call triglycerides of plant origin oils, and they correspond to derivatives that predominantly contain unsaturated fatty acids, which is why they are liquid at room temperature. (vegetable cooking oils, and in fish, see table) In the case of fats, these are composed of triglycerides of animal origin made up of saturated fatty acids, solid at room temperature. (butter, fat, chicken skin, in general: in dairy products, meats, chocolate, avocado and coconut). Their functions Fats fulfill several functions: Energetically, fats constitute a true energy reserve, since they provide 9 KCal (Kilocalories) per gram. Plastically, they have a function since they are part of all cell membranes and the myelin sheath of nerves, so we can say ir that is found in all organs and tissues. Insulator, they act as an excellent separator given their non-polarity. They transport fat-soluble proteins. They give flavor and texture to foods. Eat healthy fats and avoid junk food to stay healthy.