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Long-chain omega-3 polyunsaturated fatty acids (n-3 LC-PUFAs) are important components in healthy diets. Adequate intake of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) maintains proper neurodevelopment and reduces the risk of heart disease. Long-chain omega-3 polyunsaturated fatty acids are found primarily in fish, seafood, eggs, supplements, and fortified foods. The cost of food is a major influence on food choices. This study sought to determine the cost of 500 mg of EPA + DHA (the recommended intake) in seafood, food and supplements in order to identify the most economical sources. Stores from five retail grocery chains in Honolulu, Hawaii were visited in June and July 2010 to collect data on the price of foods and supplements containing significant amounts of EPA or DHA. The analysis used information from a nutrient database comprising of fourteen food composition databases detailing the omega-3 content of a wide variety of fish and seafood products. While fish oil supplements provided 500 mg of EPA + DHA at the lowest cost, relatively low-cost sources of EPA and DHA were available in fish with a variety of consumption characteristics, such as salmon and pelagic marine fishes. The most expensive sources of 500 mg of EPA +DHA were demersal marine fishes, milk and soy milk, and seaweeds. Strategies to increase intake of EPA and DHA include educating consumers on health benefits and sources, encouraging the consumption of seafood, improving the fatty acid profile of farmed seafood, and increasing the number of foods with EPA and DHA fortification.

A Cost Analysis of EPA and DHA in Fish, Supplements, and Foods