The Weight Watchers system is a weight-loss program that allows users to track their foods based on a "points" system, which is then incorporated into a daily or weekly plan. One of the advantages of Weight Watchers is that it uses a single formula to calculate the points value for all foods.
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Divide the number of calories in your food by 50. For example, if you are consuming a food that has 500 calories, your initial points value would be 10.
Add one point to the previously mentioned value for every 12 grams of fat in one serving. If your food item from step 1 has 24 grams of fat, add 2 points, yielding 12 points.
Subtract one point for every 5 grams of dietary fiber in a serving. The result is the number of Weight Watchers points per serving for your food. Continuing the example, if the food has 5 grams of fiber, subtract 3 points, for a final value of 9 points.
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Writer Bio
Adam Cloe has been published in various scientific journals, including the "Journal of Biochemistry." He is currently a pathology resident at the University of Chicago. Cloe holds a Bachelor of Arts in biochemistry from Boston University, a M.D. from the University of Chicago and a Ph.D. in pathology from the University of Chicago.