Eating certain foods, like monounsaturated fats (MUFAs), may help diminish belly fat and can make tackling that belly fat through diet even more effective. Add MUFA-rich foods like nuts, seeds, avocados, and olive oil to your diet, being mindful of portions, as these tend to be high in calories. This avocado filled with salted sunflower seeds is a MUFA double whammy!