Double-Potency Fish Oil Pure, Citrus Flavor, 60 Liquid Softgels, Irwin NaturalsIrwin Naturals Fish Oil Pure Double Potency. Omega 3 Oils Daily Essential Fatty Acids. 2,000 mg Purified Fish Oil. With 1,000 IU Vitamin D3. 1,200 mg Total Omega 3 EFAs (700 mg EPA 500 mg DHA) Natural Citrus Flavor. BioPerine Enhanced Absorption. Double Potency Fish Oil Pure At Irwin Naturals, we believe that Fish Oil and Vitamin D are two of the most important dietary supplements that every person should be taking for daily health maintenance. Double