I'm still concerned about a possible sensory issue.
DS (turning 4yo) had a serious sensory issue that we didn't know about and it was a nightmare figuring out how to fill his nutritional needs. He dropped through several contours on the growth curve when he hit 6 months and is still skinny but is healthy. We got the sensory issue diagnosed around age 3.
He still won't touch fresh fruit. But, he will eat justveggies dried fruits or fruit strips
He still won't touch veggies. But, I blenderize them into the sauce for his favorite meatballs.
He won't touch any mushy foods-- no applesauce, oatmeal, mashed potato... so we feed him crunchy things like tater tots, healthy crackers, etc.
He won't touch pieces of meat, unless they are breaded or covered in sauce
We just found through trial and error (and lots of it) what worked for him and still resembled nutrition. He won't eat well as a guest, but we can deal.
And yet, he loves the sandbox and running barefoot through the grass and always did. sensory issues are strange things, the kid can love one sensation and shun another.. don't rule it out yet.