The Investigation of Vitamin D and Menstrual Cycles Trial: A Phase II Clinical Trial  National Institute of Environmental Health Sciences (.gov)














Vitamin D supplements may slow cellular aging  National Institutes of Health (NIH) | (.gov)




Can Taking Vitamins Combat Infection?  American Society for Microbiology




Vitamin supplements limit glaucoma progression  Association of Optometrists (AOP)









































Vitamin A won’t prevent measles—vaccination will, says expert  Harvard T.H. Chan School of Public Health





























Scientists finally confirm vitamin B1 hypothesis from 1958  University of California, Riverside