Junk food is bad for our health. so Ithink junkfood should be banned in our school. There are many reasons for this.
You can understand the meaning of "junk food" from the following. Junk food is garbage food. This means, Junk food is bad like garbage. Junk food has lots of chemicals. Junk food has less vitamins, than regular food.
Lack of vitamins and minerals means that the brain can't work correctly. Ther fore, we need a good supply of vitamins from natural foods
Next is the most important thing, Junk food has too much salt. Eating salty food makes blood problems. so The World Health Organization(WHO) recommends an intake of 4g per day is good for our health.
This is especially, important for teanage children. If they eat too much salt, they can't grow well. so I think junk food should be banned in our school.