Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

omega-3 fatty acid

Any fatty acid that contains an unsaturated bond originating from the 3rd carbon from the methyl end. Omega-3 fatty acids do not occur naturally with chain lengths shorter than 16 carbon units.
Synonym:n-3 fatty acid
omega-3 fatty acids
omega-3 polyunsaturated fatty acid
omega-3 PUFA
Search NCI's Drug Dictionary