Plums can only make you allergic to diarrhea. If you want to lose weight, you have to choose a healthy reverse lifestyle (relative to not dieting and not exercising), which is the best way to lose weight ~ also called reverse weight loss! Dieting (eat less staple food, appropriate non-staple food, eat more vegetables, refuse snacks)+exercise (don't overdo it, refuse strenuous exercise) = excellent weight loss effect! Persistence is victory!