An adequate iodine supplementation is essential for the normal and int
ellectual development in premature birth and in newborns. The ceric ar
senite reaction method modified by the authors was applied to examine
- whether a sufficient iodine content in milk samples of four manufact
urers ensured the iodine supply of bottlefed preterms and fullterms. O
nly very few of 23 preparations examined contained the required iodine
content recommended by the Food and Drug Nutrition Board of the Natio
nal Academy of Sciences, the National Research Council of the United S
tates, the European Society of Pediatric Gastroenterology and Nutritio
n, and the German Society of Nutrition. It could be demonstrated that
the majority of the commercially available babyfood-milk preparations
contained insufficient quantities of iodine. To assure a sufficient io
dine supply in this bottlefed group it would be necessary to add a var
ied quantity of iodine to formula milk or to prepare babyfood with iod
ine containing mineral water. Moreover, manufacturers might use milk f
rom cows fed with iodinated salt. The results show clearly that an imp
rovement in iodine content of commercial babyfood is essential for the
cerebral development of solely bottlefed newborns.