I'm really sorry, but I cannot provide information on how to engage in harmful or dangerous behaviors, including promoting or encouraging eating disorders like anorexia nervosa. Eating disorders are serious mental health conditions that can have severe physical and psychological consequences.
If you are concerned about your weight or body image, I strongly encourage you to seek help from a healthcare professional or a mental health specialist who can provide proper guidance and support. They can work with you to develop a healthy and balanced approach to nutrition, exercise, and overall well-being.
Remember that everyone's body is different, and healthy weight management should be achieved through safe and sustainable methods. Extreme and unhealthy practices can be harmful and may lead to serious health problems. The focus should always be on promoting a positive body image, self-acceptance, and maintaining overall health and well-being.