Natural Factors RxOmega-3 Extra Strength is one of the highest available concentrations of the long chain omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). This uniquely integrated fish oil blend supplies 400 mg of EPA and 200 mg of DHA per softgel in an optimal 2:1 ratio used in the majority of clinical studies. These omega-3s are scientifically recognized for their significant benefits to cardiovascular health, such as reducing serum triglycerides. EPA is especially useful for reducing the pain of rheumatoid arthritis, while DHA restores brain cells to support cognitive health, brain function, and nerve cell communication.RxOmega-3 is made from cold-water anchovy, sardine and/or mackerel oils, which are two of the best natural sources of EPA and DHA. The pharmaceutical-grade fish oil concentrate ensures that it is free from lipid peroxides and environmental pollutants, such as heavy metals, pesticides, dioxins, and PCBs. RxOmega-3 Enteripure® softgels offer targeted delivery using a technology that embeds pure and natural ingredients into the softgel casing to prevent them from breaking down in the stomach, ensuring no fishy aftertaste.