Your seal of Purity. Potency. Sustainability. Essential Fatty Acids (EFAs) are called essential because your body can’t produce them; they must be obtained through diet. Omega-3 essential fatty acids support the brain, heart, circulation, and overall health. Coldwater fish and krill are among the best marine sources of omega-3s, particularly the important fatty acids EPA and DHA. All Webber Naturals omega-3 supplements are produced to the highest quality standards and are balanced to provide essential fatty acids in health-supporting ratios.