I suggest that you don't listen to random letters in the future. They are all false, and advertisements are deceptive. If you believe them, you will be caught. I suggest you focus on adjusting a balanced diet, strengthening exercise, relaxing and ensuring sleep. The principle is that consumption is greater than intake. Eat well for breakfast, and eat little or nothing for dinner. It is most important to lose weight safely, not to mention taking medicine indiscriminately, which will confuse endocrine.