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Pregnant women who drink non-diet sodas during pregnancy are more likely to have kids who carry extra body fat by age 7, researchers say.

In the study of more than 1,000 mother-child pairs, each additional serving of sugary soda per day consumed in pregnancy was associated with higher increments of waist size and body mass in kids years later.

“Sugary beverages have been linked to obesity in children and adults,” said study author Sheryl Rifas-Shiman of Harvard Medical School in Boston.

Although past research has tied sodas and some fruit drinks to excess weight gain, obesity, metabolic syndrome and type 2 diabetes, few have looked at beverage intake during pregnancy, she and her colleagues write in Pediatrics.

“Childhood obesity is widespread and hard to treat,” Rifas-Shiman told Reuters Health by email. “So it’s important to identify modifiable factors that occur prenatally and during infancy so prevention can start early.”

The researchers recruited 1,078 women from among patients at eight obstetric offices affiliated with Atrius Harvard Vanguard Medical Associates in eastern Massachusetts.

The study team had in-person meetings with each woman at the end of her first and second trimesters, as well as during the first few months after her baby was born. In addition, kids were assessed in early childhood, around age 3, and in mid-childhood, around age 8. Mothers also completed mailed questionnaires every year for the child’s first six birthdays.

At all visits, researchers collected information about both parents and details of the household. During pregnancy, women answered questionnaires about what they typically ate and drank, including how much regular and sugar-free soda, fruit juice, fruit drinks and water they consumed each day.

At the mid-childhood visit, when kids were between ages 6 and 11 years, the research team measured each child’s height, weight, waist circumference and skinfold thickness. With these…



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