Low Vitamin D Link With Obesity, Overweight Among Men
The researchers analyzed data from 9520 men and women who lived in Guilan and participated in the PERSIAN study and had complete demographic and lifestyle data as well as serum vitamin D levels and body mass index (BMI) values, collected between October 8, 2014, and January 20, 2017. Participants were classed as having vitamin D deficiency, < 12 ng/mL (< 30 nmol/L); insufficiency,12 to < 20 ng/mL (30 to < 50 nmol/L); or sufficiency, 20 ng/mL (50 nmol/L). They were also classed as being underweight (BMI < 18.5 kg/m2), normal weight (BMI 18.5-24.9 kg/m2), overweight (BMI 25-29.9 kg/m2), or having obesity (BMI 30 kg/m2).

About half of the overall study population (50.4%) had serum vitamin D sufficiency. The population was roughly split between individuals with normal weight (27.7%), overweight (39.7%), or obesity (32.6%). Compared to participants with inadequate serum vitamin D levels, those with sufficient levels were older (mean age, 53 vs 51 years), more were male (48% vs 45%), current smokers (26% vs 23%), and physically active, and had a lower mean BMI (27.9 vs 28.3 kg/m2) (all P < .05).
Compared to participants with overweight or obesity, those with normal weight were older, and more were male, current smokers, consumed alcohol (22% vs 15%), and lived in an urban area (49% vs 44%), and they were more physically active (all P < .05). Compared to men with normal weight, men with overweight were more likely to have vitamin D inadequacy (adjusted odds ratio [OR], 1.2; P = .03), as were men with obesity (adjusted OR, 1.4; P = .001), after adjusting for age, sex, place of residence, education, physical activity, alcohol consumption, and smoking. There were no significant associations between BMI and serum vitamin D levels among women.

Source: https://www.medscape.com/viewarticle/971046?src=rss