Vitamin D-fortified liquid milk: benefits for the elderly community-based population.

What Was Tested

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

Each subject had a dietary assessment, mental test score, outdoor score, serum 25 hydroxyvitamin D level, and a general biochemical screening at baseline in April 1993 which was repeated in September 1993, April 1994, and September 1994.

Who Took Part

According to the abstract, 23 subjects were involved.

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

How the Study Was Run

The researchers set it up as a randomized and double-blind study.

The subjects were allocated by chance, so the Vitamin D, K2, Magnesium and Zinc group and the comparison group should start out alike.

As a double-blind Vitamin D, K2, Magnesium and Zinc study, the assignments were hidden from both participants and investigators until the end.

What Was Measured

Each subject had a dietary assessment, mental test score, outdoor score, serum 25 hydroxyvitamin D level, and a general biochemical screening at baseline in April 1993 which was repeated in September 1993, April 1994, and September 1994.

The subject headings attached to it are Aging, Calcium, Community Health Services, Food, Fortified, Health Services for the Aged, Milk and Vitamin D.

What This Means in Plain Language

The paper is a randomized and double-blind study of Vitamin D, K2, Magnesium and Zinc in 23 subjects.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

The publication is from 1998 (Calcified tissue international), a journal based in United States.

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