Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0022-3166(22)03033-4
Dietary Supplements	free resource	MedlinePlus Health Information	https://medlineplus.gov/dietarysupplements.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21697298/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21697298
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/jn/article-lookup/doi/10.3945/jn.111.140012