10 Waist-Trimming Foods That Aren't Tasteless Celery

Calorie-dense avocados traditionally have not been considered a diet food, but as a rich source of monounsaturated fat, they may be one of the best to fight a bulging belly.

In a study published by the American Diabetes Association, participants who ate a high-carbohydrate diet tended to accumulate fat around the middle, while those who ate a diet rich in foods with monounsaturated fat had a significant decrease in abdominal fat, even without exercise.

One cup (250 mL) of avocado contains 14 g of monounsaturated fat and provides 58 percent of the daily requirement for this healthy fat.