The best way to get rid of stubborn belly fat is to do some type of intense cardiovascular exercise within your target heart rate for 30-45 minutes preferrably three times a week. I prefer running 5x per week, 4-8 miles per session, then I lift weights. Whatever cardio program you are on now, I suggest to try and double it and see if you get any results. Its a pain, but the results are worth it. Nice six pack.