Cardio: Cardio is the best way to lose belly fat. Contrary to popular belief, doing core exercises such as crunches does not cause localized lose of belly fat. Cardio exercises aid in lowering your overall body fat percentage. Sample Cardio Exercises * Running * Biking * Swimming * Rowing * Jumping Rope High-Intensity Interval Training: HIIT training causes your metabolism to speed up. It is a quicker alternative to traditional cardio exercises. Sample HIIT Exercises * Sprinting with walks between reps * A core circuit with short rest intervals * Supersetting weighted exercises together * Bicycle sprints Core Exercises Core exercises won’t isolate stomach fat loss, but they can develop the muscles around your stomach, which can improve your core definition. Core circuits can also temporarily boost your metabolism. Sample Core Exercises * Crunches * Planks/side planks * Bicycle crunches * Hanging leg raises * Plate twists