Body Mass Index (BMI) Stripped Bare!
The Body Mass Index (BMI) is used as a health indicator to screen for weight categories based on height and body mass. Your height and weight are measured to work out if your weight is healthy or not for your height.
For most healthy adults your BMI should be between 18.5-24.9. The categories below identify the full range for BMI measurements:
- Below 18.5 - Underweight
- 18.5-24.9 - Healthy
- 25-29.9 - Overweight
- 30-39.9 - Obese
So the big question! Is it accurate?
I do not rate BMI as a measurement, I am not a big fan as it has one large floor which heavily skews the results and makes them invalid due to the fact it does not factor in the weight of muscle. Muscle is much denser than fat and many extremely fit and healthy people, including professional athletes like a heavyweight boxer, a rower or a rugby player who may have a very low fat percentage could easily be classed as obese! This is because your BMI measurement does not distinguish between fat and muscle so simply dividing an individuals height by their weight does not provide a realistic result. As I have touched on already; an individual who is full of lean muscle could be classed as obese in the same bracket as an individual who has a high percentage of body fat and does no physical activity!
This method may help if you are inactive and do not follow a healthy diet, however take a look at my article on the best way to track and measure weight loss for some alternative methods that may be more reliable and easier to track!