Excessive Weight Gain Early in Pregnancy May Contribute to Fetal Fat Accumulation: Study Reveals
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Fetuses of pregnant people who gained excess weight in the first trimester of pregnancy show signs of excess fat distribution in the upper arm and in the abdomen, according to a study by researchers at the National Institutes of Health. These findings may inform efforts to prevent excessive weight gain early in life, a risk factor for adult obesity and related conditions, such as heart disease, high blood pressure and diabetes. The study appears in the American Journal of Clinical Nutrition.
The authors analyzed data from an earlier study of more than 2,600 singleton pregnancies, which included information on maternal weight before and during pregnancy and three-dimensional (3D) ultrasound scans (up to five) throughout pregnancy. The authors found that pregnant people with excessive weight gain—defined as more than 2 kilograms (about 4.4 pounds) in the first trimester—had fetuses with larger abdominal circumference and abdominal area and larger fetal arm fat thickness, when compared to pregnant people with adequate weight gain.
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