Alongside Theodore G.H. Drake, Frederick Fitzgerald Tisdall was responsible for the development and production of Pablum, a cereal-like food meant for the improvement of infant nutrition. Pablum was a combination of minerals and vitamins needed by growing children and a ground, pre-cooked mixture of starches. The product dominated infant feeding for decades after its introduction in 1930 and its royalties contributed to supporting the research at the hospital for the next twenty-five years.
Later, Tisdall went on two write The Home Care of the Infant and Child and, with Alan Brown, Common Procedures in the Practice of Pediatrics. He was also earned an international reputation for his research in human nutrition as well as pediatrics.