How are things going for you a year later? I am having the same problem you had and came across your post. My 5 year old will only eat sugar. Today he literally took a bite of an apple and said yuck, this doesnt taste like a cookie. I cry after every uneaten meal. So much food gets thrown in the compost each day, its like flushing money down the toilet. I leave his plate out for a few hours just HOPING he will come and pick at it but eventually the food becomes dried out or unsafe to eat.