RT Journal A1 BLOXSOM A T1 VItamin b requirements in infancy JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1929 FD June 1 VO 37 IS 6 SP 1161 OP 1168 DO 10.1001/archpedi.1929.01930060038005 UL http://dx.doi.org/10.1001/archpedi.1929.01930060038005 AB The infant of today as a routine receives cod liver oil and orange juice, which furnish him with liberal amounts of vitamin A, C and D. Vitamin B is supplied in small amounts in both breast and cow's milk and in somewhat larger quantities when orange juice is also given. At no time is a substance rich in vitamin B given to the infant when he needs it most, that is, at the age when growth is greatest and when his diet is most limited.The normal child develops and grows rapidly during the first year, and most rapidly during the first three months. By the end of the fourth month, the infant has usually doubled his weight, and has tripled it by the end of the first year.1 It is obvious that during this period the infant should receive every substance conducive to optimal growth and development.McCollum