When my children were small I knew a couple of children with odd diets. It was clear that the mother in both cases was to blame.
My attitude is that you simply allow children to choose what they would like, not forcing them to eat anything in particular. If a well balanced meal was put in front of them and they didn't want anything you offered, that was fine. No substitutes allowed. Only drink offered was water. Worked with one of them, the other child's mother always gave in and he was a sickly specimen.
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