Body Weight-Loss Simulator Tool

If you stay on the same reduced-calorie diet, over time the gap between calories in and calories out narrows. In a paper published last year in The Lancet, researchers from the US National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) found that for a given weight-loss goal, half the loss would occur in the first year, but the remaining pounds would take another two years to lose.

When you start to lose weight, your body slows down your metabolism. In other words, you use less energy for the same activities.

Accurate prediction of the weight-loss time course requires properly accounting for dynamic energy imbalances. A mathematical modelling approach to adult human metabolism simulates energy expenditure adaptations during weight loss, presented in a web-based simulator for prediction of weight change dynamics. The “Body Weight Simulator” allows one to figure what it will take to lose a few pounds. With this understanding, weight-loss interventions become easier to apply.

Developed by the Lab of Biological Modeling at the National Institute of Diabetes and Digestive and Kidney Disease (NIDDK), the  Human Weight Simulator comes with more bells and whistles than the ones you find in the local gym. Java is required to run it.

Run the Body Weight Simulator, click here for access

  1. Start by entering information on your height, weight and existing diet.
  2. Set a weight goal and the number of days you want to take to achieve it.
  3. Calculates the diet that will be needed, taking into account the amount of physical activity you plan to include.
  4. If the change is not possible in the time period given, a warning goes off and you can change your calculations.
  5. You can experiment with changes in your diet and activity to see what the results will be by using the “Specify Lifestyle Change” tab.

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