Of course not. Why are you so naive? I'll introduce you to a way to lose weight. You can lose about 5 pounds a week and never rebound. After getting up in the morning, you can drink a cup of tea, then a cup of milk, an egg and a loaf of bread. Before lunch, you can drink a glass of water and eat some light dishes for 8 minutes. Eat three hours before going to bed at night, drink a glass of water before meals and eat for 5 minutes. Stick to it for a week and you can lose 5 to 5 minutes. I wish you early success. thank you