I don't know if this is a true,or,false question,but,YES THIS IS TRUE.
People who suffer from anorexia can become very malnourished,and,dehydrated which malnutrition can make you very tired with a lack of energy,and,eventually you will start to starve to death.
There are many other kinds of eating disorders with many other symptoms
Hope this helps my dude and can you make me brainliest :D