Effects of medical and surgical treatment on vitamin D levels in obesity.

What Was Tested

Researchers studied Vitamin D, K2, Magnesium and Zinc in this observational study publication.

The primary aim of this observational cohort study was to compare vitamin D levels in patients two years after bariatric surgery (Roux-en-Y gastric bypass/RYGB and sleeve gastrectomy/SG) with a very low-energy diet (VLED).

Why It Was Studied

Persons living with obesity treated with bariatric surgery are at a high risk of developing nutritional deficiencies.

The same subjects were also compared with a population sample from the same region at baseline.

Who Took Part

According to the abstract, 971 individuals were involved.

S-calcium, S-25(OH)D (vitamin D), and S-PTH (parathyroid hormone) were measured in all persons with obesity at baseline and two years after treatment (n = 713).

What Was Measured

The subject headings attached to it are Vitamin D, Obesity, Morbid, Calcium, Obesity, Vitamins, Gastric Bypass and Vitamin D Deficiency.

What This Means in Plain Language

This is an observational study of Vitamin D, K2, Magnesium and Zinc in 971 individuals.

With several hundred people or more, it is a fairly large study for this kind of research.

Its findings take up roughly 5 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2023 (PloS one), a journal based in United States.

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