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













Vitamin D deficiencies: What to know  MD Anderson Cancer Center