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What is a healthy weight?
Total body weight is not the only factor that determines a healthy weight. It is important to look at how much of your weight is fat, where your body fat is located and whether you have weight-related health problems such as type 2 diabetes or high blood pressure. There are several methods used to determine if your weight is healthy:
Body Mass Index
The Body Mass Index (BMI) is a simple index of weight-for-height that determines whether your weight falls into the healthy weight range. As BMI increases over the ‘ normal range’ , so too does the risk of ill health.
To calculate your BMI, divide your weight in kilograms by the square of your height in meters (kg/m2). For example, 60kg ÷ (1.7 x 1.7) = BMI 20.7
Waist To Hip Ratio
The waist to hip ratio (WHR) is the relationship between an individual’ s waist and hip measurements. The WHR is calculated by dividing waist circumference at its narrowest point by hip circumference at the widest point. A WHR of greater than 0.9 for men and 0.8 for women indicates an increased health risk.
Waist Circumference
Waist circumference is a measure of abdominal fat and is a good indicator of health status, even when BMI calculations fall within the range classified as normal. Waist circumference is measured at the narrowest point between the ribs and hips when viewed from the front after exhaling. Waist measurements of over 102 cm (40 inches) for men and over 88 cm (35 inches) for women are considered to greatly increase the likelihood of developing weight-related health problems.
For more information on Healthy Weight see our Facts Sheets
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