Overweight and obesity are defined as abnormal or excessive fat accumulation that may impair health.
Overweight means weighing too much for one’s length/height or weight-for-length/height or BMI-for-age above the 2 z-score line.
Obesity is the condition of being obese or severely overweight or weight-for-length/height or BMI- for-age above the 3 z-score line