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A few thick, nearly black brown chocolate squares with a smooth, faintly glossy surface and crisp, slightly uneven edges are arranged on a plain plate.
●Low GI
⚡High Potassium
🌿High Fiber

Dark Chocolate (99% cocoa) Calories

Very high cocoa content, low sugar, antioxidant source

CALORIES · 100 G

600kcal

GI

25low

POTASSIUM · 100 G

710mg

FIBER · 100 G

14g

Quick answer

1 piece (medium) of Dark Chocolate (99% cocoa) (20 g) has 120 calories. That works out to 600 calories per 100 g. It contains 3.9 g of carbs, 2.5 g of protein, 10.5 g of fat and 2.8 g of fiber. Its 0.4 mg of Copper covers 40% of the Daily Value. Its glycemic index is 25 (low), so it raises blood sugar slowly.

Dark Chocolate (99% cocoa) Nutrition Facts

Selected: 1 piece (medium) · 20 g

120

KCAL / 20G

Carbs

3.9g

· 1% DV

Protein

2.5g

· 5% DV

Fat

10.5g

· 13% DV

Fiber

2.8g

· 10% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 13% · Protein 8% · Fat 79%

Dark Chocolate (99% cocoa) nutrition facts table · 1 piece (medium) (20 g)

NutrientAmount% DV
Calories120 kcal
Total fat10.5 g13%
Saturated fat6.4 g32%
Trans fat0 g
Sodium4 mg0%
Total carbohydrate3.9 g1%
Fiber2.8 g10%
Protein2.5 g5%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Medium Dark Chocolate (99% cocoa)?

ServingAmountCalories
1 piece (medium)20 g120 kcal
1 piece (small)10 g60 kcal
1 slice (thin)10 g60 kcal
1 slice (thick)20 g120 kcal
1 serving (medium)30 g180 kcal
1 piece (large)40 g240 kcal
1 serving (large)50 g300 kcal
100 g100 g600 kcal
1 pack (whole)100 g600 kcal

Calculated from 600 calories per 100 g.

Frequently Asked Questions About Dark Chocolate (99% cocoa)

Is Dark Chocolate (99% cocoa) good for you?

It can provide cocoa flavanols and other antioxidant compounds, but it is still an energy-dense food. A high cocoa percentage does not make it a treatment or a reason to eat unlimited amounts.

Does Dark Chocolate (99% cocoa) contain sugar?

Yes, it usually contains a small amount of sugar, even though far less than most sweet chocolate. The exact amount varies by product, so the ingredient list is the best way to check a particular bar.

How much caffeine is in Dark Chocolate (99% cocoa)?

It contains caffeine as well as the related stimulant theobromine, naturally present in cocoa. The amount varies by bar and serving, so people sensitive to stimulants may want to avoid eating it close to bedtime.

How can you make Dark Chocolate (99% cocoa) taste less bitter?

Pair a small piece with sweet fruit such as strawberries or banana, or let it melt slowly in your mouth. Its bitterness comes from the high cocoa content and low sugar, so adding sugar is not the only way to balance it.

What does 99% cocoa mean in Dark Chocolate (99% cocoa)?

It means that cocoa ingredients make up 99% of the bar; the remaining ingredients may include sugar or an emulsifier. It does not mean the bar is 99% cocoa powder, since cocoa solids and cocoa butter both count.

Can you bake with Dark Chocolate (99% cocoa)?

Yes, it works well in brownies, cakes, and ganache when you want a deep cocoa flavor. Because it is much less sweet than standard baking chocolate, adjust the recipe’s sugar to suit the result you want.

Does Dark Chocolate (99% cocoa) keep you awake?

It can, because cocoa contains caffeine and theobromine, which may be stimulating. The effect varies between people, but if you are sensitive to caffeine, having it late in the day could make it harder to fall asleep.

How should you store Dark Chocolate (99% cocoa)?

Keep it tightly wrapped in a cool, dry place away from strong-smelling foods. Heat and moisture can damage its texture; if you refrigerate it, seal it well and let it warm while still wrapped to limit condensation.

Why does Dark Chocolate (99% cocoa) turn white?

A pale coating is often cocoa butter or sugar crystals that have moved to the surface after temperature or humidity changes. It can affect the texture but is usually not a sign of spoilage if there is no mold or off smell.

Is Dark Chocolate (99% cocoa) toxic to dogs?

Yes. Cocoa contains theobromine and caffeine, which can be toxic to dogs, and darker chocolate generally contains more cocoa. If a dog eats any, contact a veterinarian promptly rather than waiting for symptoms.

Dark Chocolate (99% cocoa) Vitamins & Minerals

Vitamins

B2

0.05mg · 4% DV

Vitamin E

0.46mg · 3% DV

B6

0.03mg · 2% DV

Vitamin K

1.8µg · 2% DV

Minerals

Copper

0.36mg · 40% DV

Manganese

0.44mg · 19% DV

Iron

2.38mg · 13% DV

Magnesium

46mg · 11% DV

Potassium ⭐

142mg · 4% DV

Sodium

4mg · 0% DV

Dark Chocolate (99% cocoa) Glycemic Index

GLYCEMIC INDEX

25
Low
0 Low5570100

GLYCEMIC LOAD

1
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Dark Chocolate (99% cocoa)

To burn the 120 calories in 1 piece (medium) (20 g):

🚶

30min

Walking (5 km/h)

🏃

12min

Running (8 km/h)

🚴

16min

Cycling

🏊

14min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Dark Chocolate (99% cocoa)?

Dark chocolate (99% cocoa) is an intensely flavoured chocolate made with a very high proportion of cocoa solids and cocoa butter, and little sugar. Its bitterness comes through clearly, so it tastes quite different from sweeter everyday chocolate. It can be eaten a square at a time, enjoyed with coffee, or used in baking and desserts. Pair a small piece with fresh or dried fruit if you want a touch of sweetness alongside it.

It is energy-dense and rich in fat, while also providing fibre: 100 g contains 14 g. The strong flavour means a little can go a long way; try a modest portion rather than treating it like a large snack. Its assertive cocoa taste also works well grated over porridge or stirred into a dessert.

How Nutritious Is Dark Chocolate (99% cocoa)?

Nutrient density

Medium

55/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

49/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Dark Chocolate (99% cocoa) Processed?

NOVA 3

Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Dark Chocolate (99% cocoa) Contain Allergens?

No known major allergens

Gluten free
Dairy free
Eggs free
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Dark Chocolate (99% cocoa) Good For?

Vegan

— Not suitable

Vegetarian

✓ Suitable

Gluten-Free

— Not suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Dark Chocolate (99% cocoa) Fat Profile

SATURATED

6.4g

MONOUNSATURATED

2.9g

POLYUNSATURATED

0.42g

⚖️

Omega 6:3 ratio 16:1

Above the ideal 4:1 (16:1).

Compare Dark Chocolate (99% cocoa)

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Dark Chocolate (99% cocoa) vs Caramel sauce280 kcal more per 100 g
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🍫vs🍫
Dark Chocolate (99% cocoa) vs Dark chocolate60 kcal more per 100 g
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Foods Similar to Dark Chocolate (99% cocoa)

🍬

Rose Turkish delight

330 kcal

🍯

Caramel sauce

320 kcal

🍫

Dark chocolate

540 kcal

🍮

Höşmerim

320 kcal

🍫

Chocolate sauce

210 kcal

🍬

Fruit Leather

320 kcal

🍬

Pistachio Turkish Delight

370 kcal

🍮

Kazandibi

145 kcal

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Nutrition data compiled from USDA FoodData Central and scientific sources.