We should eat healthy food
Nowdays many students don't like having lunch at school because they think it isn't dilicious.So they often go outside the school to buy some snacks which like eating.
In my opinion,some of the food do harm to their body.So in oder to keep healthy,you mustn't eat the junk food.On the other hand,if you eat too much snacks at meal,you will be very fat then.
I advice the student eating snacks out of school to eat more healthy food to keep the balence of the diet.