Those who cheat you, if they use some stickers and medicines, will those stars still lose weight by dieting and exercising? Don't they even have money to buy a box of diet pills? I have never heard of stars who lose weight by taking medicine, and I have never heard of ordinary people. The most effective way to lose weight is to eat no more than 1000 calories a day, then walk 1 hour, 1 month and you will lose weight.