Hello, of course you can't eat greasy food after the holiday. It is a good choice to replace dinner with fruit. Drink more water and exercise, both of which are indispensable. Bitter gourd, cucumber, kelp, yogurt, tofu, konjac, black beans, broccoli, apples! There are many foods that can help you lose weight! It is best not to go on a diet to lose weight, which is very bad for your health! You can use these foods instead of high-calorie foods to lose weight! hope this helps