Two cases of neonatal hypocalcemia were due to the infants' inability during the first month of life to tolerate high phosphate loads. However, after 1 month of age both infants were capable of handling the phosphate load contained in commonly used infant foods.
Pierson JD, Crawford JD. Dietary Dependent Neonatal Hypocalcemia. Am J Dis Child. 1972;123(5):472-474. doi:10.1001/archpedi.1972.02110110100009