英语阅读Miss Green is very fat and she is very heavy .So she goe

英语阅读
Miss Green is very fat and she is very heavy .So she goes to see her doctor.The doctor says,"theeisn't anything wrong with you ,but you eat too much.I think you must go on a diet.Here's a book for you to read.You must eat the things on page 15. Read it carefully and eat the things for ten days,and then come to me again."
什么意思?