It may be true to track what children eat, for example, breakfast, and then agree with the parents that your child never has breakfast, why should he give food and why should parents spend money? If this option is not very humanistic, then you can not use the food that they did not eat the next day?

And about fruits and vegetables - it’s bad that children choose crackers, this teaches them to choose crackers in the store too, not fruits.This habit is formed in childhood, it is true research data. You are well done that left only useful food. And try to talk to your parents to explain everything to them.