Did you know…

1. To lose about half a kilogram a week the body needs an energy “deficit” – that is less calories eaten than burned by the body – of about 500 to 600 calories (2,100 to 2,500 kilojoules) a day.
2. For every kilogram of body weight lost, ongoing food intake should be cut by about 25 calories (105 kilojoules)  a day to ensure the weight stays off.
3. So if you lose 10 kilograms, for the rest of your life you have to eat 250 calories (1050 kilojoules) less a day.

This all assumes of course you don’t alter your activity levels.

This is according to Dr Leeds, who is a Visiting Senior Fellow in the School of Biomedical and Molecular Sciences at the University of Surrey.