Lets tackle the exercise portion first! You need to train your abs and stomach muscles the same way you train any other muscle in your body. This does not mean getting on the floor and doing 5 minutes of crunches! You need to train them with weight, like you are lifting a heavy load! A great way to do this is by hanging in stirrups on parallel bars in the gym! Another great exercise is using an incline bench and doing reverse crunches. These are two of my favorite exercises that create a nice load on the abdominal muscles. If you want a little six-pack, make sure you are training your stomach like it is a muscle. I would recommend doing 8-10 sets! It may seem like a lot, but in reality it is only going to take you about 15 minutes.
Now lets address the nutrition aspect! Belly fat comes from high insulin! Even if you have a healthy diet and you do not eat any insulin promoting foods or simple carbs, if you have stress in your life, it leads to the secretion of insulin. You need to find ways to reduce the stress. Meditation and exercise are great ways to reduce stress and help burn your fat. You need to make sure you are not getting any extra sugar with the drinks you are drinking and the processed foods you eat. The best eating plan you can use is eating organic and natural foods! Also, make sure you eat small meals rather than large ones!
Get rid of the stress in your life or at least do activities that relieve the stress, eat a healthy diet and workout, and you will get rid of your belly fat! For some people, it may take longer but if you really push your body with the right exercises, in 2-3 months you will get a slim and sexy stomach!