Healthy food is good for your health.We should eat healthy food.Healthy food, including vegetables, fruits, fish, meat, and so on. But we should keep a adequate diet,and we cannot not eat certain foods too much.

We know that some of our students do not like eating lunch at school because the food is not delicious. So they often go out of school to buy something they like to eat. But I am afraid it is bad for their health to eat lunch outside because some of the food they buy isn’t healthy enough.

翻译：

健康的食物对身体健康有益。我们应该吃些有益於健康的食物。健康的食物包括蔬菜，水果，鱼类，肉类等等。但是我们需要合理饮食，对於某种食物不能过量饮用。

我们知道许多学生不喜欢吃学校的午饭，因为它不美味。所以经常去校外买些喜欢吃的东西。但是我恐怕他们买的这些校外的食物对身体有害，不够健康。