Efficacy of oral Vitamin D supplementation in reducing body mass index and lipid profile in adolescents and young adults in Colombia: A pilot clinical trial protocol nested in the SIMBA cohort

Norma C Serrano, Sandra L Romero, Diana P Suárez, Lyda Z Rojas, Edna Magaly Gamboa-Delgado, Mario Forero, Elizabeth Guio, Doris Cristina Quintero-Lesmes, Norma C Serrano, Sandra L Romero, Diana P Suárez, Lyda Z Rojas, Edna Magaly Gamboa-Delgado, Mario Forero, Elizabeth Guio, Doris Cristina Quintero-Lesmes

Abstract

Background: In recent years, the role of vitamin D (VD) as a protective factor in cardiovascular disease has been recognized. Thus, there is a need to study the effect of vitamin D supplementation in the control of different cardiovascular risk factors and metabolic syndrome, especially in young populations where few studies have been conducted.

Methods: Pilot study of a randomized, parallel two-arm, triple-blind clinical controlled trial in 150 adolescents and young adults in the city of Bucaramanga-Colombia. The intervention group will receive 1000 IU of VD and the control group 200 IU of VD daily for 15 weeks. The main outcomes are: serum calcifediol levels (25(OH) D), body mass index and lipid profile; secondary outcomes are complementary to the previous ones (skin folds, waist-hip ratio). Other variables will be analyzed such as assessment of dietary intake, physical activity, sun exposure, cigarette and tobacco consumption and compliance with VD supplementation.

Discussion: This study is innovative since there is little evidence from clinical trials in adolescents and young adults; similar studies are not known in our context. The results of this study may facilitate the recommendation of oral vitamin D supplementation in the population of interest. In addition, it is a low-cost and easy-to-apply intervention that could contribute to the formulation and implementation of health policies.

Trial registration: NCT04377386.

Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

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Figure 1
Population eligible.

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