If an anorexia eats 350 calories a day how long does it take for him to recover?

It is not possible to recover from anorexia by limiting calorie intake. Recovery from anorexia requires a tailored treatment plan overseen by a medical professional, including nutritional support, therapy, and possible medication. Attempting to recover on one's own or through extreme calorie restriction can be extremely dangerous and should be avoided. Seek help from a qualified healthcare professional if you are concerned about someone's eating patterns or suspect they have anorexia.