The 1000 mg soft gel (or in some products, 500 mg) refers only to the size of the soft gel and not to the amount of omega-3s that the soft gel contains. Depending on the concentration of the fish oil in the soft gels, the soft gel can contain anywhere from 28% to 84% omega-3s. For example, one 1000 mg soft gel of a non-concentrated fish oil product like Nordic Naturals Omega-3 provides approximately 345 mg omega-3s. One 1000 mg soft gel of a concentrated fish oil product like Nordic Naturals Ultimate Omega provides approximately 640 mg total omega-3s.