Researchers studied more than 60,000 pregnant women in Norway and found that those who drank one sugar-sweetened soda a day were up to 25 percent more likely to give birth prematurely than those who avoided sugary drinks. And pregnant women who drank artificially sweetened sodas daily were 11 percent more likely to give birth prematurely than those who skipped sweet drinks. But it's not clear if sodas themselves deserve the blame.
[T]he new findings, published in the American Journal of Clinical Nutrition, cannot prove that sugary drinks cause preterm births. Lifestyle and other factors that go along with high sugar consumption may also play a role. Nutrition, maternal age, smoking, alcohol, obesity, chronic health problems like diabetes, and genetic conditions, have all been implicated in preterm birth.
The authors note in their report that women who drank the most sweetened drinks were also more likely to smoke, eat more calories, and have a higher body mass index (BMI) - a measure of weight relative to height - than those who drank fewer sugary drinks.
The researchers said they aren't ready to recommend that pregnant women give up all sweetened soft drinks, but they do recommend that moms-to-be watch their sugar intake and eat more fruits and vegetables.
Image: Soft drink via Shutterstock.