Does Docosahexaenoic Acid Cause Side Effects?
Even though it is a “natural” product, docosahexaenoic acid (DHA) is not always free of side effects. For most people, these side effects are merely bothersome. However, docosahexaenoic acid can sometimes cause serious side effects as well, especially when taken at higher dosages. Also, it is possible that docosahexaenoic acid obtained from fish sources could contain heavy metals or other toxins, if it is not purified properly.