Normative data of dual-energy x-ray absorptiometry body composition for healthy preterm and term infants are provided and can therefore be used in research and in clinical practice.

No abstract

Considering that a calcium retention level ranging from 60 to 90 mg/kg/day assures appropriate mineralization, and decreases the risk of fracture and diminishes the clinical symptoms of osteopenia, an intake of 100 to 160 mg/kg/day of highly bioavailable calcium salts, 60 to 90 mg/kg/day of phosphorus and 800 to 1000 IU of vitamin D per day is recommended.