Obesity is a medical condition in which excess body fat has accumulated to an extent that it may have a negative effect on health.Obesity is most commonly caused by a combination of excessive food intake, lack of physical activity, and genetic susceptibility. A few cases are caused primarily by genes, endocrine disorders, medications, or mental disorder.

Obesity is a leading preventable cause of death worldwide, with increasing rates in adults and children.

Obesity is mostly preventable through a combination of social changes and Life style changes.