The world’s obesity rate continues to climb, with more than 640 million people now considered obese. Dr. Shelby Sullivan and her team at Washington University School of Medicine in St. Louis, MO, tested a potential new obesity treatment that involves swallowable gas balloons.

In a radio interview, Dr. Sullivan explains how swallowing three gas-filled balloons helped study participants lose weight.

Dr. Sullivan presented data from the study “The Obalon Swallowable 6-Month Balloon System is more effective than moderate intensity lifestyle therapy alone: results from a six-month randomized sham controlled trial,” abstract 812d, on Tuesday, May 24, at 8:45 a.m. PT.