Our SWCAH son used to eat anything including veggies he will be 2 in September and now he won’t hardly eat anything no veggies no lunchmeat he simply says no and tries to hand me his plate.  He is not reallly on the thin side but he hasn’t been weighed since his 18month check.  He will eat fruit and of course sweets.  I don’t really want to start going down that road though.  Good Luck