Rapley said feeding babies pureed food is "unnatural and unnecessary" and could even cause health problems.
She recommended that babies are fed nothing but milk or formula for the first six months and then weaned onto solid foods. However, other professionals said feeding at a young age is not a "one size fits all" issue.
Professor David Candy, a pediatric gastroenterologist with the Royal West Sussex NHS Trust, said the program could work but that some babies make the transition between liquid and solid foods more easily.
He said, "Some babies could manage this, but others may not have the oromotor skills necessary to chew the food - they would just push it out of their mouths."
However, Rapley argued that feeding pureed food could delay chewing skills in those children ready for solids and could also inhibit portion control for some children.
She said, "Sound scientific research and government advice now agree that there is no longer any window of a baby's development in which they need something more than milk and less than solids."
She also claimed that feeding babies anything other than milk during those six months could be harmful. "Sound scientific research and government advice now agree that there is no longer any window of a baby's development in which they need something more than milk and less than solids," she said.
