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American Journal of Clinical Nutrition, Vol 53, 1185-1190, Copyright © 1991 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Absorption of the n-3 eicosapentaenoic and docosahexaenoic acids as ethyl esters and triglycerides by humans

A Nordoy, L Barstad, WE Connor and L Hatcher
Department of Medicine, Oregon Health Sciences University, Portland.

Five normolipemic subjects received three test meals containing 28 g n- 3 (omega-3) fatty acids provided as 1) triglycerides, 2) ethyl esters, and 3) ethyl esters + 12 g olive oil. The control meal contained olive oil. When equivalent amounts of fat were given, the increase in chylomicron and plasma triglycerides was similar; n-3 fatty acid contents were also similar after n-3 fatty acid intake as ethyl esters or triglycerides. Ethyl esters alone were well absorbed and produced similar n-3 fatty acid responses in plasma triglycerides and chylomicrons. At 24 h after the n-3 fatty acid-containing meals, the fatty acid plasma concentration of these acids was similar. This study showed that n-3 fatty acids in fish oil given as ethyl esters or triglycerides were equally well absorbed. Eicosapentaenoic and docosahexaenoic acids were also equally absorbed.


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