Original: In 1988 a NIH report concluded that a BMI over 25 is overweight and a BMI over 30 is obese . In the 1990s the World Health Organization ( WHO ) decided that a BMI of 25 to 29 should be considered overweight and a BMI over 30 is obese , the standards the NIH set .
Simplified: For example , in the United States in 2007 , 74 % of adults had a BMI above 25 ( Overweight or Obese ) and 27 % of adults had a BMI above 30 ( Obese ) .