Nature39s own fish oil high potency 1000mg this high potency fish oil capsules give you 550mg epadha essential fatty acids per 1000mg capsule the fish oil capsules are made from whole oily fish sardine and anchovy the nature39s own do not use fish livers because oily fish are often harvested from polluted water where heavy metals can accumulate in the liver all fish oil products sold by nature39s own are absolutely clean stable and have no trace of any