monounsaturated fatty acid monounsaturated fatty acid PMID:12936956 MUFAs monounsaturated fatty acids chebi_ontology MUFA PMID:10584045 CHEBI:25413 Any fatty acid with one double or triple bond in the fatty acid chain and singly bonded carbon atoms in the rest of the chain. MUFAs have positive effects on the cardiovascular system, and in diabetes treatment. unsaturated fatty acid monounsaturated fatty acid anion