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.
Omega-9
