Effects of vitamin D supplementation in older African American women.

ABSTRACT:

Context

Serum 25-hydroxyvitamin D (25OHD) is lower in women with darker skin color. Is it due to lower skin production, lower absorption, or different metabolism of vitamin D?

Objectives

The objective of the study was to measure the effect of vitamin D3 on serum 25OHD and serum PTH in older African American women with vitamin D insufficiency and the serum 25OHD 20 ng/mL or less (<50 nmol/L). The results can be used to estimate the Recommended Dietary Allowance (RDA).

Design and setting

This was a randomized, double-blind placebo trial at Creighton University Medical Center and Indiana University Medical Center.

Participants

Participants were 110 healthy older African American women.

Interventions

The intervention consisted of participants randomly assign

SUBMITTER: Gallagher JC 

PROVIDER: S-EPMC3590472 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature