Dietary magnesium-to-iron intake ratios and risk of impaired fasting glucose in Chinese adults: The prospective Jiangsu Nutrition Study (JIN)

Abstract

Background: Studies have consistently shown that risk of type 2 diabetes (T2D) is positively associated with dietary haem iron intake and inversely associated with dietary magnesium intake in a dose-response way. However, interaction effects of these two clinically important nutrients on T2DM risk in a prospective setting is unknown. Objective: To determine the five-year risk of developing impaired fasting glucose (IFG) associated with dietary magnesium-to-iron intake ratios (Mg/Fe), including Mg/total Fe, Mg/haem-Fe and Mg/non-haem Fe. Design: A cohort study of 1056 participants recruited into the Jiangsu Nutrition Study (JIN) from 2002 to 2007, aged at least 20 years and without known diab..