Obesity Classification and external resources
Silhouettes representing standard, overweight, and obese.
ICD-10	E66.
ICD-9	278
DiseasesDB	9099
MedlinePlus	003101
eMedicine	med/1653
MeSH	C23.888.144.699.500

Obesity is a condition in which the natural energy reserve, stored in the fatty tissue of humans and other mammals, exceeds healthy limits. It is commonly defined as a body mass index (weight divided by height squared) of 30 kg/m² or higher.

Although obesity is an individual clinical condition, some authorities view it as a serious and growing public health problem. Some studies show that excessive body weight has been shown to predispose to various diseases, particularly cardiovascular diseases, diabetes mellitus type 2, sleep apnea and osteoarthritis.^[1][2]