So can switching fats help with weight loss? Amazingly, Australian researchers found that even if you feed people about the same number of calories and the same amount of fat, but switch out meat and butterfat for olive oil, nuts, and avocados, you lose nearly six more pounds of fat in a single month.1954 You can certainly overdo plant fats, though. On high-fat diets, the type of fat appears to matter less.1955 Have people drink nearly a half cup of oil, and you can temporarily triple their insulin resistance in a matter of hours.1956
