Unsaturated fatty acids have double bonds between carbon atoms, defining them as unsaturated. Monounsaturated and polyunsaturated fats exemplify this characteristic.
Unsaturated fatty acids contain one or more double bonds between carbon atoms. When a fatty acid has a double bond, it is classified as unsaturated. For instance, monounsaturated fats like olive oil have one double bond, while polyunsaturated fats have multiple double bonds.
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