And monounsaturated fat isn't the only thing olive oil has going for it nutritionally. Some olive oils come with phytonutrients that may offer their own disease protection benefits (still, it's not clear whether most of us can take in enough of these phytonutrients without going overboard on olive oil, says Joyce Nettleton, DSc, RD, researcher and editor of the PUFA Newsletter).
All these benefits occurred despite the fact that MCTs are a saturated fat. There was no difference in daily exercise or consumption of total calories of protein, fat, or carbohydrates. There was no calorie restriction, yet the subjects still lost more weight. It further proves that it’s not all about the calories in food, it’s about the information!
In fact, the FDA now allows olive oil labels to carry the claim that its monounsaturated fat can reduce heart disease risks -- with a few strings attached. The claim says that "limited and not conclusive scientific evidence" suggests that eating about 2 tablespoons of olive oil daily may reduce the risk of heart disease. To give this possible benefit, it adds, the olive oil must replace a similar amount of saturated fat in your diet -- and must not increase the total calories you eat in a day.