C-section babies may become overweight

NEW YORK - Reuters

Children born via cesarean section are slightly more likely than babies delivered vaginally to become heavy or obese, according to a new review of studies. The results don’t prove that c-sections cause kids to put on weight, but Dr. Jianmeng Liu, one of the authors of the study and a professor at Peking University Health Science Center in China, said the link between the delivery and obesity is important to keep in mind.

“The potential health burden of obesity and other diseases associated with c-section births should not be neglected, even if its impact is modest, particularly given” how often births happen that way, Liu told Reuters Health in an email. It’s not clear why c-section births are tied to a better chance of being heavy.

One possibility relates to the bacteria babies are exposed to when they are delivered vaginally, which might affect the way they process and store food, said Liu.

Additionally, Liu added, researchers have suggested that c-sections are linked with a lower concentration in the umbilical cord of a hormone important in regulating weight and with a reduced rate of breastfeeding, “both of which are reported to be associated with an increased risk of later obesity.”