Editing Rickets (section)

===Supplementation===
Sufficient vitamin D levels can also be achieved through dietary supplementation and/or exposure to sunlight. Vitamin D<sub>3</sub> ([[cholecalciferol]]) is the preferred form since it is more readily absorbed than vitamin D<sub>2</sub>. Most [[dermatology|dermatologists]] recommend vitamin D supplementation as an alternative to unprotected ultraviolet exposure due to the increased risk of [[skin cancer]] associated with sun exposure. Endogenous production with full body exposure to sunlight is approximately 250&nbsp;μg (10,000 IU) per day.<ref name="Vieth">{{cite journal | vauthors = Vieth R | title = Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety | journal = The American Journal of Clinical Nutrition | volume = 69 | issue = 5 | pages = 842–856 | date = May 1999 | pmid = 10232622 | doi = 10.1093/ajcn/69.5.842 | doi-access = free }}</ref>

According to the [[American Academy of Pediatrics]] (AAP), all infants, including those who are exclusively breast-fed, may need vitamin D supplementation until they start drinking at least {{convert|17|USfloz|ml}} of vitamin D-fortified milk or formula a day.<ref>{{cite journal | vauthors = Gartner LM, Greer FR | title = Prevention of rickets and vitamin D deficiency: new guidelines for vitamin D intake | journal = Pediatrics | volume = 111 | issue = 4 Pt 1 | pages = 908–910 | date = April 2003 | pmid = 12671133 | doi = 10.1542/peds.111.4.908 | doi-access = free }}</ref>

Despite this recommendation, a recent [[Cochrane (organisation)|Cochrane]] [[systematic review]] has found limited evidence that vitamin D plus calcium, or [[Calcium in biology|calcium]] alone compared to vitamin D improves healing in children with nutritional rickets.<ref>{{cite journal | vauthors = Chibuzor MT, Graham-Kalio D, Osaji JO, Meremikwu MM | title = Vitamin D, calcium or a combination of vitamin D and calcium for the treatment of nutritional rickets in children | journal = The Cochrane Database of Systematic Reviews | volume = 2020 | issue = 4 | pages = CD012581 | date = April 2020 | pmid = 32303107 | pmc = 7164979 | doi = 10.1002/14651858.CD012581.pub2 | collaboration = Cochrane Metabolic and Endocrine Disorders Group }}</ref>