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Article Publish Status: FREE
Abstract Title:

Inverse Association Between Serum Vitamin B12 Concentration and Obesity Among Adults in the United States.

Abstract Source:

Front Endocrinol (Lausanne). 2019 ;10:414. Epub 2019 Jun 27. PMID: 31316466

Abstract Author(s):

Yangbo Sun, Minxian Sun, Buyun Liu, Yang Du, Shuang Rong, Guifeng Xu, Linda G Snetselaar, Wei Bao

Article Affiliation:

Yangbo Sun

Abstract:

Several studies have suggested that vitamin B12 deficiency is more common in obese individuals. We evaluated the cross-sectional associations of serum vitamin B12 concentrations with obesity in a nationally representative sample of adults in the United States.We included 9,075 participants aged≥20 years in the National Health and Nutrition Examination Survey 2011-2014. Serum vitamin B12 concentrations were measured by electrochemiluminescence immunoassay. Obesity was defined as BMI ≥30 kg/m. We used logistic regression with sample weights to estimate the odds ratios (ORs) and 95% confidence intervals (CIs).Serum vitamin B12 concentrations were lower among obese adults compared with non-obese adults. After adjustment for age, gender, race/ethnicity, socioeconomic status, dietary and lifestyle factors, use of medications that could affect the serum vitamin B12 levels, dietary supplement use and fasting time, the multivariable-adjusted ORs (95% CIs) of obesity were 1.00 (reference), 0.95 (0.79, 1.14), 0.86 (0.74, 0.99), and 0.71 (0.60, 0.84) (for trend<0.001) for increasing quartiles of serum vitamin B12 concentrations.In a large nationally representative sample of U.S. adults, higher serum vitamin B12 levels were inversely associated with obesity. Further investigation is needed to understand the underlying mechanisms.

Study Type : Human Study

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Sayer Ji
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