Nutrition facts
Calories in dark chocolate
Dark chocolate is the densest food in this set, and the only one whose real portion is so small that the per-100 g value barely means anything.
What a real portion weighs
The Anses table gives values per 100 grams, and 100 grams is not a portion anybody serves. Here are the same values, applied to the portions as they turn up. Weights are in grams, the unit the table is built on. For a quick conversion: 1 oz is about 28 g, and 1 lb is about 454 g.
| Portion | Weight | Energy | Protein | Carbs | Fat | Fiber |
|---|---|---|---|---|---|---|
| One square · a square from a standard bar | 10 g | 59 kcal | 1 g | 2.7 g | 4.6 g | 1.3 g |
| Two squares · a common portion | 20 g | 118 kcal | 2.1 g | 5.4 g | 9.3 g | 2.6 g |
| A whole bar · the size sold | 100 g | 591 kcal | 10.4 g | 26.9 g | 46.3 g | 12.8 g |
| The Ciqual reference · dark chocolate, around 70% cocoa | 100 g | 591 kcal | 10.4 g | 26.9 g | 46.3 g | 12.8 g |
These weights are usual orders of magnitude, not standardized measures: they turn a per-100-gram value into a credible portion. A kitchen scale stays more accurate than any average weight.
Composition per 100 grams
Dark chocolate, 70% cocoa, bar
- Energy
- 591 kcal
- Protein
- 10.4 g
- Carbohydrate
- 26.9 g
- of which sugars
- 17.9 g
- Fat
- 46.3 g
- Fiber
- 12.8 g
- Sodium
- 8 mg
What a table of values does not say
- A square weighs about 10 g. That is a tenth of the figure shown for 100 g, and the distance between the two explains most of the misunderstandings about this food.
- The cocoa percentage changes the line of the table: 40%, 50% and 70% are three separate entries, with more sugar as the cocoa drops.
- Dark chocolate is among the highest foods in this set for fiber, which its place in the candy aisle does not suggest.
The Zemiam recipe that uses it
These pages carry their calories and their macros, recalculated from the same table as this one. The weight given is that of the ingredient in one serving.
- Banana with dark chocolate squares · 20 g per serving
What comes after the number
How much to eat in a day
A portion means nothing without the day that holds it. A calorie need is worked out from height, weight, age and activity level, then split into protein, carbohydrate and fat.
Calorie calculatorWhere body build sits
Body mass index, the full WHO classification, and the weight range matching a normal build for a given height.
BMI calculatorNeighboring pages
An average weight is an estimate. A photo is not.
In Zemiam, a photo of the meal is enough to log the real portion, with the composition of this same table rather than a guessed figure.
Where the values come from
The composition comes from the Anses Ciqual table: Anses. 2025. Table de composition nutritionnelle des aliments Ciqual, published under Licence Ouverte 2.0. The per-100 g values are reproduced without being altered; the per-portion values are those same values multiplied by a weight, and that weight is not an Anses figure.
The same page in French: Calories du chocolat noir.