One reason why targeted fat loss does not work is because muscle cells cannot use the fat contained in fat cells directly. Fat mass needs to be broken down before it can enter the bloodstream. This fat can come from anywhere in the body, and not just from the body part being exercised.
Additionally, doing sit-ups and crunches isn’t particularly effective for burning calories.
What Exercises Should You Do?
Regular, whole-body exercises will speed up your metabolism and burn calories and fat. Aerobic exercise (cardio) may also be effective at targeting visceral belly fat. Intensity plays a role as well. Moderate or high-intensity exercise can reduce belly fat mass, compared to low-intensity aerobic exercise or strength training.
Additionally, you need to exercise often if you want to achieve significant results. For example, do moderate-intensity cardio for 30 minutes, five days a week, or high-intensity cardio for 20 minutes, three days a week.
The muscle changes that take place in response to exercise also promote fat loss. In other words, the more muscle mass you build, the fatter you will burn.