According to Roy, babies aren't ready for solids until they can sit up by themselves when they're well-supported and when they've lost what's known as the "tongue thrust" reflex. If you try to feed your baby solid foods on a spoon and your baby pushes the food out with his or her tongue, your baby isn't ready for solids yet, Roy said.
Roy and Scanlon agreed that parents shouldn't try to work around this reflex by adding baby cereal to bottles.
"Solid foods are not intrinsically better or more calorically dense than breast milk or formula," said Roy. And she added, "Solid foods can harm kids when started too early."
Results of the study were released online March 25 in advance of publication in the April print issue of Pediatrics.
Learn more about the right time to introduce solid foods to infants from the American Academy of Pediatrics.
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