Hi, Welcome to Healthcaremagic!
As pointed by Dr Gaurang, diet & acne
are believed NOT to have a relation, BUT this view is being seriously questioned by recent studies; still relation between anorexia
& acne is not clear cut. You may develop other problems by becoming anorexic, so if you are having acne, this may not be a treatment option. Please consult a dermatologist
for your skin problems.