The study used the data from the National Health and Nutrition Examination Survey (NHANES) 2007–2014 to analyse the relationship of dietary vitamin B1, B2, niacin, B6, B12 and dietary folate equivalent (DEF) intakes with metabolic syndrome. In the multivariate-adjusted model 2, compared with the lowest quartile of dietary intake, the odd ratios (ORs;95% confidence intervals (CIs)) were 0.73 (0.59–0.91), 0.76 (0.61–0.95), 0.76 (0.59–0.98) and 0.77 (0.62–0.96) for the highest quartile of vitamin B1, niacin, B6 and DFE, respectively. The ORs (95%CIs) for the third and the highest quartile of vitamin B2 were 0.78 (0.61–0.99) and 0.62 (0.47–0.83). A linear inverse relationship was found between dietary vitamin B1, niacin, B6, DFE and metabolic syndrome, and a non-linear inverse relationship was found between dietary vitamin B2 and metabolic syndrome. Our results suggested that higher intake of vitamin B1, B2, niacin, B6 and DFE were all associated with reduced risk of metabolic syndrome.

该研究使用了2007-2014年美国国家健康与营养检查调查（NHANES）的数据来分析饮食中维生素B1，B2，烟酸，B6，B12与饮食中叶酸当量（DEF）摄入与代谢综合征之间的关系。在多元调整模型2中，与最低饮食摄入量四分位数相比，奇数比（ORs； 95％置信区间（CIs））为0.73（0.59-0.91），0.76（0.61-0.95），0.76（0.59-维生素B1，烟酸，B6和DFE的最高四分位数分别为0.98）和0.77（0.62-0.96）。维生素B2的第三和最高四分位数的OR（95％CI）为0.78（0.61-0.99）和0.62（0.47-0.83）。饮食中的维生素B1，烟酸，B6，DFE与代谢综合征之间呈线性反比关系，饮食中的维生素B2与代谢综合征之间呈非线性反比关系。