Although strength training is more effective, cardio still has a place in helping burn body fat. Skip the grueling hours of steady-state cardio and opt for high-intensity interval training (HIIT) workouts instead. It not only works (and is proven to target belly fat), but also saves you time at the gym. "The whole workout, including warmup, doesn't need to be more than 45 minutes to be effective," said ACE-certified fitness instructor John Kersbergen. He added that three to four times a week is enough.
Here are some HIIT workouts you can try: