Yes , belly fat is easily lost by regular swimming or swimming. Not only belly fat , but your whole body fat will be lost in a very beautiful way in the habit of swimming. The body will become slippery. But yes , it is important to not only swim , but also to maintain a good eating habits. Eat healthy foods and swim every day, excluding fatty and high calorie foods. The body will become a neat. You can read this article to know more about the benefits of swimming - swimming for good health