Vitamin D and dementia

Vitamin D deficiency and insufficiency among US adults: prevalence, predictors and clinical implications (University of Michigan School of Medicine, 2018) Vitamin D deficiency (VDD) and insufficiency (VDI) are increasing at a global level Serum 25hydroxyvitamin D (25(OH)D) measurements were collected from 26, 010 adults (National Health and Nutrition Examination Survey, NHANES) VDD, less than 50 nmol, l (20 ng ml) VDI, 50 to 75 nmol, l (20 25 ng ml) Prevalence VDD, 289 VDI, 414 Adults who were black, less educated, poor, obese, physically inactive and infrequent milk consumers Obese adults, 309 times higher prevalence of VDD (180 times higher prevalence of VDI) Physically inactive adults, 200 t