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

What Was Tested

Researchers studied Vitamin D, K2, Magnesium and Zinc in this randomized controlled trial publication.

Who Took Part

By PubMed's age tags, the people studied were older adults and people over 80, women only.

Cognitive assessments every 6 months using the Mini-Mental State Examination (MMSE) to detect cognitive decline.

How the Study Was Run

The design is described as randomized, double-blind and placebo-controlled.

Random assignment meant chance, not the researchers, decided who got Vitamin D, K2, Magnesium and Zinc and who got the comparison, which limits bias.

Blinding on both sides kept the participants and researchers unaware of who received Vitamin D, K2, Magnesium and Zinc.

Some participants received a placebo instead of Vitamin D, K2, Magnesium and Zinc, giving a reference point.

Randomized, double-blind, placebo-controlled clinical trial.

Bone Mineral Research Center at New York University Winthrop Hospital.

Mean MMSE scores were calculated over time for both groups.

Those with MMSE scores less than 21 at baseline were excluded.

What Was Measured

PubMed files the paper under topics including Black or African American, Cholecalciferol, Cognition, Cognitive Dysfunction, Dementia, Dietary Supplements and Healthy Volunteers.

Author keywords: calcium and vitamin D.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc.

Its findings take up roughly 7 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2019 (Journal of the American Geriatrics Society), a journal based in United States.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.