Are there signs if the body is not supplied with enough omega-3?

In the case of some diseases, an omega-3 deficiency can be assumed and the course of the disease can be alleviated by the intake of omega-3 fatty acids. In general, the Western diet is mostly associated with an omega-3 deficiency. Direct signs are not really noticed because they are often already part of everyday life and people have learned to live with them (sleep disturbances, lack of concentration, digestive problems, etc.). In addition, many autoimmune diseases can be caused by a deficiency of omega-3 fatty acids, although no changes in the body have been noticed before.