It would take 18 days, because it takes 3,500 calories to gain a pound, 3500/200 is 17.5, round that up to 18.
It can effect lung development
<span>If Beth often does not eat with her friends at lunch and eats only lettuce for dinner, Beth may suffer from Anorexia. Anorexia Nervosa is a kind of psychological disorder and it can cause various and different extreme health problem. </span>
