Why is BMI important?
The body mass index (BMI) is a simple way to check if your weight is healthy in relation to your height, or if it poses a risk to your health. A healthy BMI is 18.5 - 24.9. At BMI 25 - 29.9 you're classed as overweight, and a BMI of 30 or over means you're classed as obese. In general, the higher your BMI, the greater your risk of a range of medical problems.