About this item Algal oil is a vegetarian DHA oil that does not come from cold-water fish. There is no risk of ocean-borne contaminants when using algal oil. DHA is an integral part of neural membrane phospholipids in the brain. This algae-derived DHA is called algal oil, and itҳ now added to food products to ensure that we get enough omega-3s in our diet in a sustainable and humane way. Algal oil also helps reduce triglycerides and LDL cholesterol.