Safety depends on yourself. It is suggested to focus on adjusting a balanced diet, strengthening exercise, relaxing mood and ensuring sleep. The principle is that consumption is greater than intake. Have a good breakfast, 5 or 6 minutes for lunch, and eat little or nothing for dinner. It is most important to lose weight safely. Be careful not to use drugs indiscriminately to lose weight, and it will be troublesome to confuse endocrine. I hope I can help you.