The prevalence of obesity has risen dramatically over the past 20 years, and more people experience the health effects of obesity than any other disease. Obesity is a complex medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health. Obesity is typically defined as having a body mass index (BMI) of 30 or greater and is associated with the leading causes of death, including diabetes, heart disease, stroke, and some types of cancer. In addi...