Cognition and Vitamin D in Older African‐American Women– Physical performance and Osteoporosis prevention with vitamin D in older African Americans Trial and Dementia

There was no difference in cognition over time between older African-American women with serum concentrations of 25(OH)D of 30 ng/mL and greater than those taking placebo. There is no evidence to support vitamin D intake greater than the recommended daily allowance in this population for preventing cognitive decline. J Am Geriatr Soc 67:81-86, 2019.