Why is the BMI still used?ĭespite all the downfalls and limitations shown above that come with the body mass index, ironically those same limitations play a role in why it is still widely used. This means that for bodybuilders and very fit people, sometimes it’s better being 'overweight' because to them the BMI is stating they are heavier than 'normal' people, which is in fact the goal most bodybuilders want to obtain. One last thing to remember is that the 'overweight', 'underweight' readings shown in this BMI Calculator are relative to a pre-defined average 'normal' body weight.

Thus it is important to take all this into account when trying to understand your BMI reading and also speak with a doctor or nutritionist before undergoing any new fitness routine or diet.

In reality, the 'normal' body weights for people vary from age, gender, and population.Having high muscle mass can result in a higher BMI because muscle is more dense than fat and thus for the same height someone with a lot of muscle can weigh as much as someone with high body fat.Even though taller people tend to be thinner on average, their larger bone mass usually skews their BMI to slightly larger values.The 'normal' proportion is used for all heights and weights even though not everyone has the same body type.Several issues arise with this method and those are listed below: Basically the BMI assumes a 'normal' body weight for men and women of average height and average fitness or activity level. If your BMI is over 35, your GP may advise you on additional options available to support you with losing weight.It is important to note that the Body Mass Index is to be used as a general tool for determining a healthy body weight. Aim to exercise more and eat healthy balanced diet.įor individualised medical and dietary advice consult your GP and Dietitian. You lose weight if the amount of energy coming into your body is less than what is being used up by your body. The good news is that even losing small amounts of weight can benefit your health. It is important that you take steps to reduce your weight. Obese(BMI 30+)Īs your BMI increases, your risk of developing coronary heart disease, diabetes and some cancers increases. For individualised medical and dietary advice consult your GP and Dietitian. Aim to exercise more and eat a healthy balanced diet. Keeping to a healthy weight will help you control your blood pressure and cholesterol levels. Overweight(BMI 25 to 30)īeing overweight increases your risk of developing coronary heart disease, as well as other health conditions such as diabetes. Some researchers have suggested that a BMI range of 22-26 is acceptable for older Australians. Most adults should be active for 30 minutes on most days.įor older Australians, your general health may be more important than being mildly overweight. But we recommend that you also check your waist measurement.Īim to keep within the ideal weight range by eating a healthy, well-balanced diet and exercising regularly.

You are a healthy weight for your height. If you're concerned about your weight or you are losing weight without trying, talk to your GP and Dietitian to make sure there aren't any other problems causing this. Being in the healthy weight range will improve your body's ability to fight off infection or illness. It's important to aim to keep within your healthy weight range.

Bmi formula for women calculator