Marnys Salmon Oil is a natural source of Omega-3 fatty acids. It also provides natural vitamin E, which helps protect cells against oxidative stress. Salmon oil is rich in Omega-3 fatty acids: eicosapentaenoic (EPA) and docosahexaenoic (DHA). Salmon is the species that provides the largest amount of EPA and DHA fatty acids: for 3 ounces served salmon provides 1. 0 to 1. 8 g of DHA + EPA. The presence of natural vitamin E is of vital importance in the membranes of the retina cells (where the highest amount of the body DHA is concentrated), as it protects against oxidation and maintains the concentration of DHA.