A new report says there are now more obese people in the world than there are underweight people. Researchers from Imperial College London wrote the report. Their findings were published in the British medical journal The Lancet. The researchers examined health records from about 20 million people for what they called the “world’s biggest obesity study.” Obesity is a condition in which the body stores large, unhealthy amounts of fat. Obese individuals are considered overweight. For the study, the researchers compared the body measurements of almost 20 million adults. They found that from 1975 to 2014, global obesity rates for men increased from 3.2 percent of the population to 10.8 percent. For women, it rose from 6.4 percent to 14.9 percent. They estimate that in 2014 there were 266 million obese men and 375 million obese women worldwide.