Discuss Hugh Cruickshank's answer to: How can I get my 9 year old to eat healthy meals he doesn't eat alot of sweets he only seems to eat white food

Does he have anybody he looks up to. A sports figure or someone else? you could play off that and explain the types of food those individuals eat to be strong, fit and healthy. 

The other way is to simply put the foods on his plate you want him to eat and give him nothing else. After awhile he will eat what you put out. Could be a day or so, but when he gets hungry enough he will eat.