According to a new report from the United Nations Food and Agricultural Organization, the United States gave up its number one spot for the most obese of the developed nations, and slid down to number two. The top spot, now, belongs to Mexico, which edged out the US only by a mere percent (32.8 vs 31.8). The study looked at adults age 20 and older and noted the percentage of those whose BMI was 30 and above – to determine the percentage of obese adults. Taking the last place in the study was Japan where only 4.5 percent of its adults fall under the obese category. Of the entire world population, about 12 percent is considered to be obese.