It all starts from what you eat.
You just need to be mindful with your diet, everyday, well, maybe almost everyday. I know, it’s difficult to do everyday, but you have to make a commitment here: to lose that belly fat you have to do something about it, first starting from diet.
Here is a list of foods that may help lose your belly fat:
Oatmeal
Almonds, or Other Nuts
Protein Powder (it is not just for gym rats. It contains amino acids that burn fat)
Olive Oil
Berries like raspberries, blueberries, etc.
Eggs (it has high cholesterol though)
Green Vegetables
Make it simple: more veggies and fruits, less fatty items in your diet.