Abstract
BackgroundsSimultaneous dietary intake of vitamins is considered as a common and real scenario in daily life. However, limited prospective studies have evaluated the association between multivitamins intake and obesity in children and adolescents.ObjectivesThis study aimed to evaluate the relationship between the intake of different dietary vitamins and the risk of obesity in children (6-11 years) and adolescents (12-19 years).MethodsWe conducted a cross-sectional study based on data from U.S. National Health and Nutrition Examination Survey, 2013-2016. A total of 3634 children and adolescents were included who had available data on dietary vitamins, obesity and covariates. We analyzed the dietary intake levels of nine vitamins, including vitamin A, vitamin B1, vitamin B2, vitamin B6, vitamin B12, vitamin C, vitamin D, vitamin E, vitamin K. Multivariate logistic regression was used to model the associations between vitamins and obesity. Bayesian kernel machine regression (BKMR) was employed to explore the joint and independent effects of vitamins on obesity among children and adolescents.ResultsIn the multivariate logistic regression model, five vitamins (vitamin A, vitamin B1, vitamin B2, vitamin B12, and vitamin D) were negatively associated with obesity in children and adolescents. BKMR analysis showed that when the concentration of the nine vitamins was at or above the 55th percentile compared with the median value, the combined intake of these vitamins could significantly reduce the risk of obesity in children and adolescents. Potential interactions between vitamin B2 and vitamin B12 in increasing the risk of obesity in children and adolescents were observed.ConclusionsWe determine the combined effects of multivitamins on obesity in children and adolescents, and observe a significant interaction between vitamin B2 and vitamin B12. Further cohort studies are needed to clarify the health effects of multivitamins intake in a larger population.
Highlights
Obesity is a complex disease, which is intertwined with biological, developmental, environmental, behavioral and genetic factors [1]
In the multivariate logistic regression model (Table 2), we found that vitamin A, vitamin B1, vitamin B2, vitamin B12, and vitamin D were negatively associated with obesity in children and adolescents
We found that the increase of five vitamins was significantly negatively correlated with the occurrence of obesity in children and adolescents
Summary
Obesity is a complex disease, which is intertwined with biological, developmental, environmental, behavioral and genetic factors [1]. Childhood obesity is a continuing and serious international health problem affecting approximately 17% of American children and adolescents, and will threaten their health and longevity in adulthood [3]. Childhood is identified as the golden age of investing in obesity prevention. Considering the multi-factor origin of obesity, a better understanding of the influencing factors is essential for effective treatment and prevention [4, 5]. Micronutrient status may be a significant factor for the development of obesity during childhood [6]. It is urgent to examine the significant effects of common multivitamins in children and adolescents on obesity. Most vitamins are deficient in obese individuals, especially water-soluble vitamins, such as vitamin B12 and vitamin C. There is a great need to assess the relationship between vitamins status and obesity in children and adolescent
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