Antidepressants are the most common medications prescribed to treat PTSD. Antidepressants make your brain release more serotonin and other 'feel good' chemicals that is in your brain's reward system. This is also released during things like eating your favorite food, Sexual relations, and exercise.
It cause weight loss because the diets make you avoid certain food that have higher amount of some thing’s such as carbs or fat in them. If you avoid less of something then you will overall be getting less it therefore you will lose weight
