Fetuses of mothers with excess weight gain showed increased arm thickness and abdominal size throughout pregnancy.

Relationship between gestational weight gain with fetal body composition and organ volumes in the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Fetal Dimensional Study: a prospective pregnancy cohort
Go to source). 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.
TOP INSIGHT
#Pregnant people gaining 4.4+ lbs in the first #trimester (1st 3 months) may have babies with larger #abdominal_circumference, area, and #armfat thickness. #pregnancy
1st Trimester Weight: Impact on Fetus
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.In contrast, most previous studies have not examined fetal 3D measures during pregnancy and have only linked total weight gain across pregnancy, not just in the first trimester, with birthweight.
The authors wrote that their findings suggest that the timing of weight gain, instead of total weight gain, could be important for developing efforts to prevent excess fetal size and reduce the risk of heart disease and other conditions later in life.
Reference:
- Relationship between gestational weight gain with fetal body composition and organ volumes in the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Fetal Dimensional Study: a prospective pregnancy cohort - (https://www.sciencedirect.com/science/article/abs/pii/S0002916524014333?via%3Dihub)
Source-Eurekalert
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