My, now 6 1/2 year old son, didn't eat any food till he was well over 1 year old, maybe even 18 months. He was bottle fed. I introduced solids at 4 or 6 months (I can't remember). He took one tiny spoonful and clearly clamped his mouth shut after that. Our pediatrician's attitude was to leave him be unless he showed signs that were concerning to the pediatrician. The pedicatrician noted that formula had all he needed regarding nutrition.
My son never showed any developmental problems. He still has a very limited diet (mostly beige - crackers, bread, butter). Just this past year he started eating chicken "nuggets" and pizza. Every once in awhile, he'll have a little bit of sweet and sour meatballs. And, this one we can't figure out, he'll eat crab rangoon. That's it (except for, of course, chocolate). But he's healthy and thriving. He has a phenomenal sense of taste (he does love to taste spices but won't eat anything cooked with them) \, smell, and and texture which is why I think he'll look at food or smell it and find the food offputting. My guess is that he'll be a chef or restaurant critic once he does "discover" food.
Hope this helps.
Good luck.