Fig. 1From: Vitamin D supplementation after the second year of life: joint position of the Committee on Nutrition, German Society for Pediatric and Adolescent Medicine (DGKJ e.V.), and the German Society for Pediatric Endocrinology and Diabetology (DGKED e.V.)Distribution of vitamin D serum concentrations to ensure adequate calcium absorption in a healthy population and the resulting limits in the absence of sun exposure (figure adapted according to [13])Back to article page