Name	Info	Provider	Link
Vitamin D Deficiency	free resource	MedlinePlus Health Information	https://medlineplus.gov/vitaminddeficiency.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/38135475/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/38135475
	free resource	HEC Press, Healthy Eating Club PTY LTD	http://apjcn.nhri.org.tw/server/APJCN/32/4/401.pdf