Methamphetamine is known to cause weight loss in some individuals, but this weight loss is not healthy and can be highly dangerous. Methamphetamine use can lead to significant changes in appetite and metabolism, which can cause individuals to lose weight rapidly.

However, this weight loss is typically due to a loss of muscle mass and body fat, which can lead to a range of health problems such as malnutrition, weakness, and a weakened immune system. Methamphetamine use can also lead to significant changes in brain function and structure, including impaired memory, attention, and decision-making abilities.

It is important to note that the use of methamphetamine can lead to significant health problems, legal issues, and social and economic consequences. If you are concerned about methamphetamine use and its impact on your health, it is recommended that you seek professional medical advice and support to address substance use disorders and any related health issues.