Dark Chocolate, 45-59% Cacao

USDA composition for dark chocolate, 45-59% cacao, and what a Nutrition Facts panel would print at the serving you choose — rounded by the FDA’s own declaration rules.

Also calledsemi-sweet chocolatemild dark chocolate barbittersweet chocolatedark chocolate bar 50 percentsemisweet chocolateplain chocolatechocolate negrochocolate amargo
Reference basis
Label serving

Switch to 100 g to see the raw published values with no rounding applied.

Calories
880
Protein
8 g
Total fat
51 g
Sodium
40 mg
Nutrient
Calories884.52 kcal880 kcal
Total Fat50.706 g51 g65%
Saturated Fat29.97 g30 g150%
Trans Fat0.18144 g0 g
Cholesterol12.96 mg15 mg4%
Sodium38.88 mg40 mg2%
Total Carbohydrate99.144 g99 g36%
Dietary Fiber11.34 g11 g41%
Total Sugars77.598 g78 g
Added Sugarsnot reported
Protein7.9056 g8 g16%
Vitamin Dnot reported
Calcium90.72 mg90 mg6%
Iron12.9924 mg13 mg70%
Potassium905.58 mg910 mg20%

Label declares applies the rounding rules in 21 CFR 101.9(c) to the measured amount at this serving. Select any rounding rule for the band and its citation; select a column heading to hide that column.

Showing bar, 162 grams. 880 calories.

Insights

Every figure below has a formula — select any heading to see it. These are properties of the ingredient, so they do not move with serving size: 52% of dark chocolate, 45-59% cacao’s calories come from fat whether you weigh out oz or bar.

These are descriptive ratios, not nutrient content claims. A claim such as “good source of calcium” or “high protein” is evaluated per RACC serving under 21 CFR 101.54 — a different calculation, on a different basis, which this page does not make.
0.9 g
3.6%
51.6%
44.8%
5.46 kcal/g
54.20 g
8.74
0.04
0.27
0.06
0.57
11.63

Where every number on this page came from

Three versioned inputs. If any changes, the page is rebuilt and the build id below changes with it.

Composition
USDA FoodData Central
FDC 170271 · SR Legacy · released 2018-04
Rounding & %DV
FDA 21 CFR 101.9
§ 101.9(c), § 101.9(d)(7) · eCFR snapshot 2026-02-12
Read on eCFR →
Naming & ratios
BetterMenu enrichment
8 aliases · 13 ratios
Page built from bundle v1.3.0 · Aug 26, 2026 · commit 7fdde67
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Daily Values shown are for adults and children 4 years and older. This page reports published composition data for a reference food — it is not an analysis of your formulation, and it is not a substitute for one.

For informational purposes only; verify against 21 CFR 101.9.