Several factors can contribute to calcium deficiency in children: - Inadequate dietary intake of calcium-rich foods such as dairy products, leafy greens, and fortified foods. - Vitamin D deficiency, which impairs calcium absorption. - Certain medical conditions, like hypoparathyroidism or chronic kidney disease, that affect calcium metabolism. - Genetic disorders such as DiGeorge syndrome. - Medications like anticonvulsants that interfere with calcium absorption or metabolism.
