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Nearly two-thirds of adults in the United States are overweight, and 30.5 percent are obese, according to data from the 1999-2000 National Health and Nutrition Examination Survey (NHANES). Overweight and obesity are known risk factors for diabetes, heart disease, stroke, hypertension, gallbladder disease, osteoarthritis (degeneration of cartilage and bone of joints), sleep apnea and other breathing problems, and some forms of cancer (uterine, breast, colorectal, kidney, and gallbladder). Obesity is also associated with high blood cholesterol, complications of pregnancy, menstrual irregularities, hirsutism (presence of excess body and facial hair), stress incontinence (urine leakage caused by weak pelvic-floor muscles), psychological disorders such as depression, and increased surgical risk. Overweight refers to an excess of body weight compared to set standards. The excess weight may come from muscle, bone, fat, and/or body water. Obesity refers specifically to having an abnormally high proportion of body fat. A person can be overweight without being obese, as in the example of a bodybuilder or other athlete who has a lot of muscle. However, many people who are overweight are also obese. Q: How many adults are overweight? A: According to NHANES 1999-2000 and the US Census 2000, nearly two-thirds of U.S. adults are overweight (Body Mass Index (BMI) > 25, which includes those who are obese).
Q: How many adults are obese? A: Nearly one-third of U.S. adults are obese (BMI > 30).
Q: How many adults are at a healthy weight? A: Less than half of U.S. adults have a healthy weight (BMI > 18.5 to < 25).
More information on Weight issues |
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