Estimate Weight Watchers style points.
Points-style scores rank food on more than energy. Calories set the base, saturated fat and sugar push the score up, and protein pulls it down, which is why 250 kcal of chicken scores far lower than 250 kcal of biscuits. This is an independent reconstruction of that behaviour rather than any proprietary formula, so treat the absolute number as indicative and the comparisons between foods as the useful output. The score is floored at zero and rounded to a whole number, matching how such systems are used in practice.
Points score
Points = calories x 0.0305 + saturated fat g x 0.275 + sugars g x 0.12 - protein g x 0.098
Meal total
Total points = points per serving x servings eaten
This is an independent estimate of a points-style food score and is not affiliated with, endorsed by or identical to any commercial weight-management programme's proprietary formula. Values are population-average estimates for general planning only and are not medical or dietetic advice. Individual energy and nutrient needs vary widely with body composition, activity, medication and health status. Consult a qualified health professional or registered dietitian before making significant changes to what you eat, and especially if you are pregnant or breastfeeding, are under 18, or have a medical condition or a history of disordered eating.
Because protein is the most satiating macronutrient and the least readily stored as fat. Systems that weight it negatively are steering choices towards foods that keep people full at a given energy intake.
No. Commercial formulas are proprietary and revised over time. Expect this to land within a point or two on most everyday foods and to diverge more on items very high in sugar or saturated fat.
Yes. High-protein, low-fat, low-sugar foods such as skinless white fish or plain non-fat yoghurt can compute to zero or below, and the result is floored at zero.