One in eight adults are living with obesity. Rates of adult obesity have more than doubled since 1990, and rates of adolescent obesity have quadrupled. The number of people living with overweight and obesity combined is projected to reach 4 billion by 2035—approximately half of the global population. The clinical, economic, and societal burdens of obesity are substantial. Population distributions of obesity are socially patterned, and deeply embedded, perhaps intractably so, within the organisation of modern society.
The Lancet Public Health (Tue,) studied this question.