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Background:

Hyperglycemia and gestational diabetes mellitus are complications of pregnancy. Both mothers and newborns are typically at increased risk for complications. This study sought to determine effect of zinc supplementation on serum glucose levels, insulin resistance, energy and macronutrients intakes in pregnant women with impaired glucose tolerance.

Methods:

In this clinical trial 44 pregnant women with impaired glucose tolerance, from December 2012–April 2013 were randomly divided into zinc (n= 22) and placebo (n= 22) groups and recived 30mg/day zinc gluconate and (n= 22), and placebo for eight consecutive weeks respectively. Dietary food intake was estimated from 3-days diet records. Serum levels of zinc, fasting blood sugar, and insulin were measured by conventional methods. Also homeostatic model assessment of insulin resistance was calculated.

Results:

Serumlevels of fasting blood …