Vitamin D is a key hormone that plays a role in calcium and phosphorus metabolism and is essential for bone health, especially in the pediatric population. However, recent data have suggested that vitamin D may have extra-skeletal actions as well, and may play a role in several conditions including obesity, asthma, and type 1 diabetes. This has led to increased interest in screening for vitamin D deficiency in many child and adolescent populations.
But what is the best way to screen for vitamin D deficiency, and who should be screened? Are there potential benefits of screening for vitamin D

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