I haven't tried. I have been exercising after dinner recently. First I walked fast, now I run slowly. It is still valid. In fact, as long as I have good eating habits (such as basically giving up rice and big fat, eating more vegetables and fruits, paying attention to my food intake and resolutely boycotting drinks), I will gradually lose weight. I don't think it is good to gain weight. Losing weight is a long-term thing ~