BMI is the standard measure used for clinical diagnosis of obesity.
It predicts health risks for most people accurately. It is not a reliable indicator for strength athletes and body builders (around 2% of the population) because it only takes height and weight into account – not body composition. Bodybuilders with very low levels of fat are often classified as ‘obese’ by this method.
BMI is a quick and easy gauging method. A BMI reading of 30 or more is classified as obese.
Below is a guide to BMI readings:
– < 18.5 = Underweight
– 5 – 25 = Normal
– 25-30 = Overweight