Survey of the erythrocyte EPA+DHA levels in the heart attack/stroke belt

Background The Omega-3 Index (O3I; erythrocyte EPA+DHA as a percent of total fatty acids) is inversely related to risk for cardiovascular disease (CVD). The cardioprotective target O3I is 8%–12%. O3I levels in American regions with high CVD risk are poorly characterized. Purpose To determine the O3I in individuals participating in a Seafood Nutrition Partnership (SNP) survey in seven US cities in the CVD “belt.” Methods Fingerstick blood samples...