Also eating enough monounsaturated fats can help you lose belly fat, but you have research it and get the right amounts.
Walking is also good
for losing belly fat, as are other exercises. Aim for at least 30 min, 3 times/week
As far as what you should eat --- concentrate on veggies and lean protein, such as lean meats, fish, chicken, turkey, eggs and low/no fat dairy.
Limit fruit to one or two servings/day, because it has a lot of sugar, which, if not used right away is turned to fat.