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Dark chocolate nutrition facts

A 1 undetermined oz (28 g) serving of dark chocolate provides 170 calories, 2 g protein, 13 g carbohydrate, and 12 g fat — about 5% of its calories from protein, 31% from carbohydrate, and 64% from fat. The interactive label below toggles between a serving and 100 g.

Calorie split

170kcal / serving
Protein 5% Carbs 31% Fat 64%
Nutrition Facts1 servings per containerServing size1 undetermined oz (28 g)Amount per servingCalories170% Daily Value*Total Fat 12g15%Saturated Fat 7g35%Trans Fat 0gCholesterol 0mg0%Sodium 5mg0%Total Carbohydrate 13g5%Dietary Fiber 3g11%Total Sugars 7gIncludes 0g Added Sugars0%Protein 2gVitamin D 0mcg0%Calcium 21mg2%Iron 3.5mg19%Potassium 200mg4%* The % Daily Value (DV) tells you how much a nutrient ina serving of food contributes to a daily diet. 2,000calories a day is used for general nutrition advice.
170
Calories
2 g
Protein
13 g
Carbs
12 g
Fat

Vitamins & minerals

Per serving (28 g)

Vitamin A (RAE)
0.57 mcg
Vitamin E
0.17 mg
Vitamin K
2.07 mcg
Thiamin (B1)
0.01 mg
Riboflavin (B2)
0.02 mg
Niacin (B3)
0.30 mg
Vitamin B6
0.01 mg
Vitamin B12
0.08 mcg
Magnesium
64.6 mg
Phosphorus
87.3 mg
Zinc
0.94 mg
Copper
0.50 mg
Manganese
0.55 mg
Selenium
1.93 mcg

Nutrition highlights

Per 1 undetermined oz (28 g), dark chocolate is an excellent source of Copper and Manganese and a good source of Iron, Magnesium, and Dietary Fiber.

Relatively high in Saturated Fat per serving — worth noting if you are limiting them.

Copper
56%
Manganese
24%
Iron
19%
Magnesium
15%
Dietary Fiber
11%

% of the FDA Daily Value per 1 undetermined oz (28 g) serving.

Key metrics

Calorie density
598
kcal per 100 g · very high
Protein density
1.3
g protein per 100 kcal
Calories from
Protein 5% Carbs 31% Fat 64%

Nutrient density

28
/ 100 density score
more nutrient-dense than 28% of foods we track

Per 100 kcal, dark chocolate delivers about 4% of a Daily Value on average across 22 beneficial nutrients. The score is its percentile for that measure among the 177 foods in our database — higher means more nutrition per calorie. How this is calculated.

Where it stands out
  • More iron than 100% of foods · 100% of other
  • More fiber than 98% of foods · 100% of other
  • More potassium than 97% of foods · 100% of other

Density counts protein, fiber, and vitamins and minerals (not fat, sodium, or sugar), each capped so a single nutrient can’t dominate, with a calorie floor so very-low-calorie foods aren’t overstated. It measures nutrition per calorie within our database — a useful guide, not a complete verdict on how “healthy” a food is.

Similar foods & swaps

The closest other to dark chocolate by nutrition (per 100 g), and how each differs.

Questions

How many calories are in dark chocolate?
A 1 undetermined oz (28 g) serving of dark chocolate has about 170 calories. Per 100 g, it has 598 calories — a very high calorie density.
How much protein is in dark chocolate?
Dark chocolate provides about 2 g of protein per 1 undetermined oz (28 g) serving.
What are the macros in dark chocolate?
Per serving, dark chocolate has roughly 2 g protein, 13 g carbohydrate, and 12 g fat. By calories, that is 5% protein, 31% carbohydrate, and 64% fat.
Is dark chocolate high in protein?
Dark chocolate has a protein density of about 1.3 g per 100 kcal, and 5% of its calories come from protein. Foods above roughly 10 g per 100 kcal are generally considered protein-dense.
What vitamins and minerals are in dark chocolate?
Per 1 undetermined oz (28 g), dark chocolate is a notable source of Copper, Manganese, Iron, and Magnesium. The label above lists the full micronutrient profile with % Daily Values.

Use it

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References & methodology

  • Data source: U.S. Department of Agriculture, Agricultural Research Service — FoodData Central, FDC ID 170273 (public domain).
  • Daily Values: FDA Nutrition Facts label, 2016 update (adults and children aged 4+).
  • Source claims: a serving supplying 10–19% of the Daily Value is a “good source”; 20% or more is an “excellent source” (FDA, 21 CFR 101.54).
  • Calorie split: Atwater general factors — 4 kcal/g for protein and carbohydrate, 9 kcal/g for fat.
  • Last reviewed: June 2026. Values are typical figures and vary with variety, ripeness, and preparation.
Cite this page

NutriFactsHub. “Dark chocolate Nutrition Facts.” https://www.nutrifactshub.com/foods/dark-chocolate