According to the European Food Information Council, algal oils are marine algae extracts containing an omega-3 fatty acid called docosahexaenoic acid. A U.S. scientific study found a connection between the use of algal oil supplements and lower blood levels of triglicerides and increased levels of lipoproteins HDL and LDL.
The European Food Information Council indicates that the results of the research study applied to people who do not suffer from coronary heart disease. Dietary supplements containing DHA were available before the study was conducted. The experiments used algal oil supplements containing an average daily dose of 1.68 milligrams of DHA and confirmed that this amount was enough to mitigate the health risks of coronary heart disease.