2
Prevalence
Key Points
➤ From 1999–2000 through 2017–March 2020, US obesity prevalence
increased from 30.5% to 41.9%.
• During the same time, the prevalence of severe obesity increased
f rom 4.7% to 9.2%. .
Definition
➤ "Obesity is defined as a chronic, progressive, relapsing, and
treatable multi-factorial, neurobehavioral disease, wherein an
increase in body fat promotes adipose tissue dysfunction and
abnormal fat mass physical forces, resulting in adverse metabolic,
biomechanical, and psychosocial health consequences."
