I was wondering how old your son is? Has he ever tried sweet potato fries? You and your husband must remain in control and not let your son continue to have his way. Have you tried talking to his pediatrician? I know that many health facilities have healthy eating classes for children even as young as four years of age. You must introduce new foods to your child...like starting from square one when he was an infant. You can try the cold turkey approach and cut out fries completely which are in fact very unhealthy for him to consume all of the time. Another alternative is to take your son out to dinner or invite his friends over and serve anything else but french fries. Sometimes, the peer pressure will work as well.
I hope that this has helped. Please ACCEPT. If you need further assistance, contact Erica.13. Have a nice day.