Eligibility Criteria

Inclusion CriteriaExclusion Criteria
Initial BPbs 10–44 ug/dLChelation in the past 3 mo
Age 1–6 yConcomitant Fe deficiency (ferritin <16 ng/mL)
Normal intake history and physicalHemoglobin < 10.5 g/dL from any cause
Availability of telephone contactMetabolic bone disease
Medications affecting mineral metabolism, such as steroids, diuretics, large doses of vitamins