You can't be too radical when you lose weight, and it's easy to rebound.
Drinking Pu 'er tea before meals helps digestion and gain weight.
Drink after meals to lose weight.
It takes a week to get results, and you lose a lot of weight in a month, obviously.
This is how I lose weight. Personally, I think it is still very healthy and effective, and it is convenient to do. You know that round watermelon. I eat one-eighth watermelon every morning and two or three peaches at noon. I insisted on eating watermelon for three days. On the fourth morning, I had a normal meal (I was too greedy, but I only ate vegetables and supplemented some nutrition), and then I insisted on eating watermelons and peaches for three days.