# Vegetable oil is saturated or unsaturated?

Mar 7, 2017

Fatty acids consist of a hydrocarbon chain bonded to a carboxylic acid group $\left(\text{COOH}\right)$. If the hydrocarbon chain contains no double-bonded carbon atoms, it is saturated with hydrogen atoms. If the hydrocarbon chain contains one pair of double-bonded carbon atoms, it is monounsaturated because it has fewer hydrogen atoms. If the hydrocarbon chain contains more than one pair of double-bonded carbon atoms, it is polyunsaturated, and contains even fewer hydrogen atoms.