Eating foods high in healthy fats won’t make you gain weight. Regardless of their calorie count, researchers have found that fats like avocados, nuts, and olive oil in the Mediterranean diet are beneficial. “People who were put on a Mediterranean diet without any calorie restrictions for five years lost slightly more weight than people put on a low-fat diet for the same amount of time…more than 10% of heart deaths were traced to eating too few plant oils, like those that are plentiful in a Mediterranean diet. In another study by the same authors of that analysis, people who drank full-fat milk had a 46% lower risk of developing diabetes than those who chose skim.” Overall, people on the Mediterranean diet tended to eat more healthy foods such as produce and fish.