ProCon.org, a nonpartisan 501(c)3 nonprofit public charity dedicated to promoting critical thinking, created the new website http://www.obesity.procon.org to explore the core question "Is obesity a disease?"
The debate over whether or not obesity is a disease grows as obesity rates and the cost of treating obesity-related conditions increase in the United States.
Proponents stress that obesity is a disease because it is a result of genetics and biological factors, citing scientific studies that have shown a link between obesity and heredity. Certain known illnesses can also cause weight gain or obesity, including hypothyroidism, Cushing's syndrome, and polycystic ovary syndrome.
Opponents argue that obesity is not a disease because it is the result of a person's environment (i.e. residential location, social circle, economic status, etc.), lifestyle, and eating habits, citing other studies that show obesity is a result of environment and social networks.
The Centers for Disease Control and Prevention (CDC) reported an "epidemic" of 72 million obese people in the United States in 2006 with 34.3% of adults considered obese (vs. 13.4% in 1962) and 32.7% considered overweight (vs. 31.5% in 1962).
In 2005 obesity accounted for an estimated 216,000 deaths (1 in 10 deaths) among U.S. adults. It was the third-leading risk factor in U.S. adult deaths, after tobacco smoking (467,000 deaths) and high blood pressure (395,000 deaths). Obesity and obesity-related health conditions cost an estimated 10% of annual medical spending in the US, totaling $147 billion in 2008.
As of Dec. 15, 2009, the World Health Organization (WHO), FDA, and the National Institutes of Health (NIH) have all stated that obesity is a disease. The CDC and the Department of Health and Human Services (HHS) have not taken a position on whether or not obesity is a disease. The U.S. House of Representatives in its Oct. 29, 2009 health care bill H.R. 3962 included obesity as a "behavioral risk factor" and not as a disease.