Weight and body composition are influenced by a variety of factors, including genetics, diet, exercise, and lifestyle. While it may appear that some people can eat whatever they want and not gain weight, it is important to remember that everyone's body is different and responds differently to food and exercise. It is also possible that your friends may have a higher metabolism or be unconsciously engaging in behaviors that contribute to weight maintenance, such as consuming more fiber or drinking more water.

It is also important to remember that weight is not the only indicator of health and should not be the sole focus of one's self-worth. It is important to focus on developing healthy habits and behaviors, rather than becoming fixated on a specific number on the scale. If you are struggling with your weight or body image, it may be helpful to speak with a healthcare professional or therapist for guidance and support.