[A baby who is too pink].

A 5 week old preterm boy born by caesarean section on maternal indication at a gestational age of 33 weeks is described, who developed a symptomatic zinc deficiency. He developed diarrhea, dermatological problems and convulsions. IV-zinc supplements and subsequent oral zinc medication induced a complete remission of symptoms. Pathofysiologic sequences as well as disease states (sub-normal intake before and after birth, decreased absorption and increased loss) that can lead to zinc deficiency are discussed. To prevent a deficiency, an intake of 300-450 mcg/kg/day i.v. of elementary zinc in case of total parenteral nutrition and 700 mcg/kg/day p.o. in case of oral feeding is recommended.