what kind of food is healthy to us?

At present,almost all teenagers like eating the foreign fast food,such as the hamburger,French fries,etc..They only consider the taste of the food,and feel it very fashionable.In fact,such food is very unhealthy.Because their nutrient component is very low,and make people get fat.
Only those pure nature pollution-free food is the healthiest,for example,green vegetables,meat,egg,milk,etc.Teenagers in puberty should eat healthy food even more,which have a long-term advantage.
时下,年轻人都喜欢吃洋快餐,诸如汉堡包、薯条等等.他们只是考虑这些食品的口味,而且吃起来很时尚.其实,这些食品是非常不健康的.因为它们的营养成分很低,而且容易使人发胖.
只有那些纯天然的绿色食品才是最健康的,比如,绿色蔬菜、肉、蛋、奶,等等.对于年轻人来说,正在发育期,更应该吃一些健康的食品,才有长远的好处.