Takeaway
- Individuals with class II and III obesity (body mass index [BMI], >35 kg/m2) had a low prevalence of vitamin D deficiency.
- Serum and dietary vitamin D levels were not associated with metabolic syndrome (MS) or its diagnostic parameters, except for low high-density lipoprotein (HDL) cholesterol levels which were associated with serum vitamin D deficiency.
Why this matters
- The association between vitamin D deficiency and obesity has been evaluated in the scientific literature, but with controversial results.
Study design
- The study included 150 participants (age, 18-65 years) with class II and III obesity from the DieTBra Trial.
- Associations between serum and dietary vitamin D and MS or its parameters were evaluated.
- Funding: Goias State Research Support Foundation.
Key results
- The prevalence of vitamin D deficiency was 13.3% and the dietary vitamin D median was 51.3 IU/day.
- In the fully adjusted multivariate regression models, serum and dietary vitamin D were not significantly associated with MS and its parameters, except for lower HDL which was associated with serum vitamin D deficiency (prevalence ratio, 0.71; 95% CI, 0.53-0.97; P=.029).
- Serum and dietary vitamin D had no significant associations with sociodemographic, lifestyle and anthropometric variables, and the class of obesity.
Limitations
- Small sample size.
This clinical summary originally appeared on Univadis, part of the Medscape Professional Network.
