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The official statistics collected by the CDC (Center for Disease Control and prevention) state that 33.8% of United States adults (age 20+) are obese, and 17% of children and adolescents (2-19 years old) are obese. It is important to note that there is a significant difference between being overweight and obesity; weighing "too much" does not necessarily make someone obese. It is more related to body composition in terms of how much fat there is in proportion to muscle. People who mistake these two may over estimate obesity rates.