RE: Mono/polyunsaturated fats and weight loss?
Both MUFA's and PUFA's need to be converted to SFA's before storage as BF, which requires some energy. They also have slightly less energy respectively (fractional). In physical terms, there will be little difference if burned. How much difference this makes when consumed is anyone's guess. I believe there are studies comparing the effects of fat gain between consumed oleic acid (mufa), and palmitic acid (SFA). I don't have a link.