Monounsaturated fatty acid is a form of potentially helpful dietary fat that is mostly unsaturated. Research shows that these types of fats may benefit insulin levels and help with blood sugar control, making it good for those with type 2 diabetes.  Monounsaturated fatty acids can be found in a variety of foods and oils, including red meat, milk products, nuts, and high-fat fruits such as olives and avocados. Olive and sunflower oils have the highest amount of monounsaturated fats.