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Early-pregnancy weight gain linked to gestational diabetes
Los Angeles Times

Women have long been told that gaining weight before becoming pregnant or being overweight at the start of pregnancy puts them at higher risk for gestational diabetes. But a new study finds that the first trimester is the most crucial time for weight gain that can increase the danger of developing the condition.

The study, released Monday in the journal Obstetrics & Gynecology, looked at data from an ethnically diverse group of women who had babies between 1996 and 1998; 345 women had gestational diabetes, and 800 who had not developed the disease served as a control group.