英语作文 Shall we diet in order to keep fit?怎么写 快 会死人的

时间有限,我自己写了一段,希望能帮上你的忙
If you asked me:"Shall we diet in order to keep fit?" The answer is definitely no.I think going on a diet is not a good way to keep fit.As we all need nutrition everyday.We should have an adequate,balanced diet to support ourselves.Going on a diet is harmful to our health.For the sake of ourselves,we'd better not do that.There are many other ways to keep fit despite of dieting,such as doing exercises.Ecercising is a more effective method to loose weight and beautify our figures.We can do this instead of going on diet.After all,health is the most important thing.

Your answer is well and concise, perhaps you can further elaborate from your points:
Balance diet: We need different source of nutrients to keep a healthy body. For instance: lack of iron can lead...