FAO, The State of Food Insecurity in the World 1999 . Accessed online here , Jan. 29, 2000. Accessed online here , Jan. 18, 2000. L.R. Brown et al. Online edition, July 26, 1999.
Obesity is defined in the United States in terms of the body mass index.
An individual with a BMI of less than 20 is underweight. A BMI of 25.0 to 29.9 is considered overweight and a BMI of 30.0 or more is considered obese. Morbidity and Mortality Weekly Review 48, no. New Estimates of the Costs of Inadequate Health Literacy . A Call to Action.