O3 is a group of essential unsaturated fatty acids that can not be synthesized by our body, so we need to take them daily from our diet. From this group of O3 fatty acids two are the ones that stand out: EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), which collectively are called Ω3 unsaturated fatty acids. The daily intake of Ω3 is extremely important for the body, since it is responsible for the proper functioning of all cell membranes, ie for controlling the entry and exit of the substances in our cells.