Green Vibe Forskolin This exercise does not include crunches or sit ups. But if you can maintain a consistent 30 minutes exercise plan for at least 5 days per week you will see a difference in your belly fat. Try doing pelvic exercises to tighten your stomach muscles instead of doing crunches that does not work. An excellent exercise for belly fat is actually walking. If you can engage in 30 minutes of brisk walking and getting up that  Green Vibe Forskolin heart rate you should be at the level where you are charging your metabolism and getting it to burn some calories.