Fat loss happens on a cellular level and you have fat cells all over your body. To lose fat in the tummy area you'll have to lose fat everywhere so the key is to burn more
calories than you consume. You want to eat good carbs (google glycemic index and stick to the carbs that have a low GI as these will not spike insulin levels which triggers fat storage). Eat lean proteins, healthy fats (mono and polyunsaturated - avoid saturated & trans fats), and plenty of vegetables. Eat clean, unprocessed foods and drink lots of water. Most importantly, make sure your input is lower than your output.