Keep running every day, eat less food with high sugar content, eat more fruits and vegetables, and never go on a diet (especially breakfast). Some of my classmates suffer from stomach diseases, and obesity is mainly related to personal physique. Some people just get fat, but I think it's better to bring some meat to look healthy and pleasing to the eye. The main thing is what this person looks like. Of course, it better be beautiful. I wish you success in slimming.