You must try fruits and adding more vegetables with his diet. He might surprise you and like the healthy option, just keep trying. Some foods he has to get used to with numerous tries

Thanks. He is so resistant that he won't eat the greens even if we are.

We use stuff like green juice, mine won't eat veggies so it's a stop gap to her. It's hard because her daddy doesn't eat veggies for the most part unless it's iceberg lettuce soaked in ranch. It's a point of contention in our lives we go to a certain pizza place that's amazing pizza but I get the chef salad so at least she sees me eating veggies.

My son is 12 and only eats a few foods, but that was not always the case. Increased Anxiety and sensitivity to textures play a role. A therapist pointed out that my son was seeking out foods that provide a good dose of dopamine to help regulate himself which was helpful to know. Right now, he is going through a growth spurt, and so is his appetite. I leveraged his increased hunger by making his favorite foods a reward for filling up healthier options first. It works to a degree, but his diet is still minimal and a struggle.