improve the choice of healthy food in school canteen

1.the types of food available in the canteen
- Potato chips, chocolate, soft drinks, fried fish ball

2.why these types of food are unhealthy
- Lack of vitamines, low dietry fibre, high content of fat or energy

3.different types of healthy foods
- Fruits, mineral water, sandwich with vegetable

4.the benefits of eating healthy foods
- prevent illness, keep fit, increase study ability

5.how to encourage people to choose healthy foods
- Increase the food quality, avoid selling unhealthy foods in cateen, increase education

6.any other details that are important
- Parents should do well as children always imitate their diet habit.

i need it urgently...plz help me answer this.