The World Health Organization has long declared that obesity is a growing global epidemic¹. Not only do many people have excessive weight, but cases are on the rise at a fast rate. Of course, changes in diet and lifestyle can explain the majority of the cases, but experts theorize that nutrition and inactivity are not the only contributing factors. They believe that the chemicals in everyday plastic materials change something in our metabolism that makes us more vulnerable to excessive weight gain. Can something as ordinary as a plastic water bottle lead to weight gain? Find out here.