The Association between Dietary Iron Intake, SNP of the MTNR1B rs10830963, and Glucose Metabolism in Chinese Population.

Associations between Dietary Iron and Risk on Elevated Fasting Glucose Stratified by the rs10830963 Risk Allele in the MTNR1B Gene After adjusting for age, sex, region, years of education, physical activity level, intentional physical exercise, smoking status, alcohol use, and total energy, a borderline significant trend was observed across the quartiles of total dietary iron and risk of elevated fasting glucose among G allele non-carriers ( p = 0.066), while a linear trend was found among G allele carriers ( p = 0.033) in all participants ( Table 3 and Figure 2 ).

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