Nutrition Points Calculator

One of these four terms has a minus sign in front of it

This tool scores a food out of its calories, saturated fat, sugar and protein, and hands you a single number. It is an unofficial, legacy-style points estimate, not affiliated with any commercial programme, and it is useful for comparing foods against each other.

Here is the formula it runs:

Points = (calories × 0.0305) + (saturated fat × 0.275) + (sugar × 0.12) − (protein × 0.098)

Look at the last term. Everything in that equation adds to your score except protein, which subtracts from it.

That minus sign is the most interesting character in the whole system, because it is doing something a calorie count structurally cannot. Protein has calories. Four per gram, the same as sugar. A calorie counter has no way to distinguish them; to a calorie counter, 40 calories of chicken and 40 calories of sugar are identical, because they are.

This formula disagrees, and it disagrees on purpose. It says that protein arriving in your food is worth something beyond its energy, so much so that it should reduce a food's score rather than raise it. Eat more protein and your points go down, even as your calories go up.

That is not arithmetic. That is an argument, encoded as arithmetic. And the rest of this page is about what the argument is and whether it holds.

What one point actually costs

Those four coefficients look arbitrary until you turn them upside down. Divide one by each and you get the exchange rate: how much of each thing buys you exactly one point.

Now the system is legible. Roughly 33 calories is a point, so a 2,000 calorie day would be about 61 points if the food were entirely neutral. On top of that sits a surcharge for two things the system disapproves of, and a rebate for one it approves of.

And note the size of the rebate. Ten grams of protein removes a whole point. Ten grams of protein is 40 calories, which would otherwise have cost you about 1.2 points. So pure protein costs roughly 0.24 points instead of 1.24: an 80 percent discount on its own calories.

Eat protein and the system very nearly stops charging you for it.

Saturated fat and sugar are charged twice

The surcharges are more aggressive than they look, and you can prove it with the numbers above.

Take 3.6 grams of saturated fat, which is one point's worth. Fat carries 9 calories a gram, so that is 32.7 calories. And 32.7 calories is, by the first row of the table, almost exactly one point on its own.

So that 3.6 grams costs you one point as calories, and then another point as saturated fat. Two points, for what a calorie counter would call one point's worth of energy.

Saturated fat is charged at double rate. It is not a small nudge. It is a 100 percent tax.

Sugar works out the same way. One point is 8.3 grams, which at 4 calories a gram is 33.3 calories, which is about one point by itself. Add the sugar surcharge and you are at two points again. Also double.

So the system's whole philosophy, extracted from its coefficients:

• Saturated fat: pay twice.
• Sugar: pay twice.
• Protein: pay about a fifth.
• Everything else: pay face value.

That is a nutritional position, arrived at by choosing four numbers. The system is not measuring your food. It is grading it, against a set of opinions about what food should be made of, and then presenting the grade as though it were a measurement. Which is not a criticism. It is just worth knowing that a point is a judgment and a calorie is a fact.

The chicken and the chocolate bar

Put two foods through it and watch the machinery work.

A 150 g chicken breast. Roughly 165 calories, about 1 g of saturated fat, no sugar, 31 g of protein.

(165 × 0.0305) + (1 × 0.275) + 0 − (31 × 0.098)
= 5.03 + 0.28 − 3.04
= 2.3 points

A 45 g chocolate bar. Roughly 240 calories, 8 g of saturated fat, 24 g of sugar, 3 g of protein.

(240 × 0.0305) + (8 × 0.275) + (24 × 0.12) − (3 × 0.098)
= 7.32 + 2.20 + 2.88 − 0.29
= 12.1 points

Now compare. The chocolate has about 1.5 times the calories of the chicken. It has 5.3 times the points.

That gap is the entire system in one line. A calorie counter would have told you the chocolate is half again as expensive as the chicken, which is true and, most people would agree, misleading. This formula says it is more than five times as expensive, because it is charging the chocolate twice over for its sugar and its saturated fat while refunding the chicken for its protein.

Watch the protein term on the chicken specifically: 3.04 points wiped off a 5.3 point food. Well over half the charge, refunded, for being made of protein. That is the minus sign doing its work.

Why this works, and where it stops working

Being fair to it: this system is cleverer than it first appears, and the distortions are doing something useful.

The core insight is that people cannot be trusted to make good decisions from a calorie number alone, because a calorie number genuinely does not contain the information they need. Calories are agnostic about satiety, and satiety is what determines whether you make it to dinner. Protein is the most filling macronutrient by a distance, so charging less for it steers people toward foods that leave them fuller for the same money. The chicken above will hold you until evening. The chocolate will not hold you until four. The points figure has captured that; the calorie figure has not.

Our Protein Intake Calculator covers the evidence on protein and fullness, and our Calorie Density Calculator covers the other half of the same idea. The system is a rough approximation of both, wrapped in one number, which is a genuinely elegant piece of design for something people have to do in a supermarket.

Now the honest limits.

Points are not calories, and only calories decide your weight. Our Calorie Deficit Calculator covers this. You can construct a low-points day that is high in calories, and if you do, you will not lose weight, because your body is running on physics rather than on a scoring system. The points are a proxy. They are a good proxy when your food is ordinary and a poor one when you start gaming them.

The fat position is dated. A 100 percent surcharge on saturated fat reflects a particular era of nutritional thinking. The evidence has become considerably more nuanced since, and as our Fat Intake Calculator explains, fat is not optional and the source matters more than the total. This formula will punish a handful of nuts and some full-fat yoghurt fairly hard.

It cannot see anything else. Four inputs. No fibre, no micronutrients, no processing, no salt. A food engineered to score well on four numbers can be poor on all the ones it cannot see, and food companies are extremely good at optimising for whatever is being measured.

And it is unofficial. This is a legacy-style estimate for comparing foods, not a commercial programme's current system, not affiliated with one, and not a substitute for one.

Questions people ask

Why does protein reduce the score?

Because the system is trying to steer you toward filling food rather than merely cheap food, and protein is the most filling macronutrient. Ten grams of it refunds a whole point, which works out at roughly an 80 percent discount on its own calories.

Should I count points or calories?

Calories are the thing that actually determines your weight. Points are a proxy that bakes in some useful guidance about food quality. If you want to know what will happen to your weight, count calories. If you want a quick steer in a supermarket, points are a decent shortcut.

Are any foods zero points?

In this formula, a food would need its protein refund to cancel its calories entirely, which does happen with very lean protein. A tin of tuna in water, roughly 110 calories and 35 grams of protein, comes out at about minus 0.08 before anything else is counted. The tool floors the displayed figure at zero rather than showing you a negative, because a food that gives you points back is an artefact of the arithmetic rather than a real thing.

Is this the official system?

No. It is an unofficial, legacy-style estimate, not affiliated with any commercial programme, and useful for comparing foods against each other rather than for following anyone's plan.

Is the saturated fat penalty fair?

It reflects an older consensus. The current evidence is more nuanced, and the source of the fat matters more than the total. Expect this formula to be harsh on nuts, eggs and full-fat dairy.

References

Where the reasoning comes from. The energy values used above, 9 calories per gram for fat and 4 for carbohydrate and protein, are from the Institute of Medicine's Dietary Reference Intakes work on energy and macronutrients, and they are what allow the coefficients to be converted into the exchange rates in this page. The evidence on protein and satiety, and on protein preserving lean mass during energy restriction, which is the argument the formula's minus sign encodes, is set out in the joint position of the Academy of Nutrition and Dietetics, Dietitians of Canada and the American College of Sports Medicine, and in recent reviews. This tool and this page are unofficial and are not affiliated with any commercial weight-management programme.

1. National Academies of Sciences, Engineering, and Medicine. Dietary Reference Intakes for Energy. Washington DC: The National Academies Press. https://www.ncbi.nlm.nih.gov/books/NBK591020/
2. Thomas DT, Erdman KA, Burke LM. Position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine: nutrition and athletic performance. Journal of the Academy of Nutrition and Dietetics. 2016;116(3):501-528.
3. Current perspectives on protein supplementation in athletes: general guidance and special considerations for diabetes. Nutrients. 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC12655512/
4. Campbell AP. DASH eating plan: an eating pattern for diabetes management. Diabetes Spectrum. 2017;30(2):76-81. https://pmc.ncbi.nlm.nih.gov/articles/PMC5439361/