December 2, 2022


Omega-3 and omega-6 fatty acids are polyunsaturated fatty acids. Unlike omega-3 and omega-6, omega-9 fatty acids are monounsaturated, meaning that they only contain one double bond. It is located nine carbons from the omega end of the fatty acid molecule.

They are synthesized endogenously in humans, though not fully compensating all body requirements. Consequently, they are considered as partially essential fatty acids. Oleic acid is the most common omega-9 fatty acid and the most common monounsaturated fatty acid in the diet.

Omega-9 fats are common in: vegetable and seed oils, nuts, seeds. A diet rich in Omega-9 results in increased levels of anti-inflammatory cytokines and decreased levels of pro-inflammatory cytokines. It also lowers levels of systemic corticosterone.

Omega-9 fatty acids may help reduce the risk of heart disease, decrease inflammation and help improve blood sugar control.

Oleic acid and erucic acid are two major Omega-9 sources. Oleic acid is the most abundant in many vegetable oils as compared to other omega-9 fatty acids. It represents 40.7% of sesame oil, 17.5% of flaxseed oil, 74.8% of olive oil, 58.8% of rapeseed oil, and 32.7% of pumpkin seed oil. Erucic acid is mainly found in rapeseed and mustard seed oils.

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