Caesarean born babies more likely to be obese, says study

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RG: Why do you think mice born by Caesarian gained more weight? . This research conducted in New York University showed that mice born via a c-section have an unbalanced amount of good and bad bacteria in their stomach which leads them to a risk of gaining weight and becoming obese.

A new study finds that children who are born via c-section are more likely to become obese than those born naturally.

The study found mice that were born via a c-section put on about 30 percent more weight than their counterparts who'd had a natural birth.

Study author Dr Maria Dominguez-Bello said: 'Our study is the first to demonstrate a causal relationship between c-section and increased body weight in mammals'.

The study was conducted in the New York University. C-sections, however, have increased, with doctors in some regions of the world performing them 43 percent of the time.

Babies born by C-section are thought to miss out on these bacteria, which could explain why their microbiomes look different.

Along with a rise in C-sections, researchers are also seeing a rise in obesity, type-1 diabetes, allergies, and other immune-related diseases, suggesting C-sections may be related to such diseases.

Dominguez-Bello: We found that in mice, C-section-fostering caused increased weight gain, and an abnormal microbiota that seems to not mature much during the baby's development.

For the first time, researchers have shown that being born by C-section can contribute to obesity in mice. These three bacterial groups have been previously associated with a lean body phenotype in mice. She studies the microbiome and preterm birth in humans, and notes that it is hard to say what the new results mean for people.

The team used genomic techniques to determine which bacterial species lived in the guts of the mice for four weeks after weaning, when they were about eight weeks old.

Dominguez-Bello: We think it's microbes, but we need to prove it.

C-sections, like antibiotics, are life-saving intervention when needed. No wonder women choose to have C-sections.