Omega-9 fatty acids are either monounsaturated or polyunsaturated. Oleic acid (Wikipedia) is the most common omega-9 fatty acid in the family and the most common monounsaturated fatty acid in the diet. Omega-9 (Wikipedia) fatty acids aren’t strictly “essential”, meaning they can be produced by the body. Some of the other family members include mead acid (Wikipedia), a polyunsaturated fat that may have some anti-inflammatory properties, erucic acid (Wikipedia), a monounsaturated fat, and nervonic acid (Wikipedia), a monounsaturated fat important for healthy brain function.
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