Two different studies have concluded that antibiotics raise risk of obesity among children. The first study was being carried out on mice and has been published in the journal Nature.

Lead author of the study Martin Blaser, said that they assessed the effect of antibiotic treatment, but in low doses among mice. It was found that size of mice increased significantly and the effect remained for a long time.

Didier Raoult, a researcher, who was not connected to the studies, said that antibiotics have been given to animals from decades. It has been done so in order to increase their productivity and the effect of the same is still visible in the form of large sized animals.

"People used antibiotics to treat infections, but then they were surprised that even in the absence of disease, this led to bigger animals", further affirmed Raoult.

The second study, which was being published in the International Journal of Obesity, is based on the findings of approximately 11,000 children, who live in Avon, which is in England. After assessing the group, it was revealed that children, who were given antibiotics in toddler age witnessed obesity later in their lives.

Lead author of the study Leonardo Trasande was of the view that the study has shown the correlation between antibiotics and obesity.