The omega-9s are a type of monounsaturated fatty acid, the first C=C double bond of which is on the ninth carbon atom in the chain from the end opposite the acid group.
Unlike omega-3s and omega-6s, omega-9s are not essential. The human body can make them from other unsaturated fatty acids.
They are found in vegetable oil, particularly olive oil which is rich in oleic acid, one of the main omega-9s.
The omega-9s are beneficial to health as they are particularly involved in reducing the risk of cardiovascular events and cancer.
The Omega-9s, including oleic acid, are found in large amounts in olive oil. DR Credits