Your BMI (Body Mass Index) is a measure of body fat based on height and weight, and can affect how your diet plan works. To work out your BMI: 


• Divide your weight in kilograms by your height in metres 


• Divide the answer by your height again – this is your BMI 


Calorie Intake should be increased (with an additional shake/meal) for people with a BMI of 40 and over for both men and women. Men with a BMI of 30-40 may also benefit from an extra STW product if struggling with hunger but it should not be necessary for women at that BMI range. For those with a starting BMI of 30 or under should only undertake a TFRD for a few weeks before moving onto a VLCD