Food Database

Coffee Nutrition Facts

PER 100 g serving
Short answer

A 100 g serving of coffee contains 1.0 kcal, 0.1g protein (lime), 0.0g fat (pink) and 0g carbohydrate (blue). It has no fiber and almost no sugar. Its other nutrient values are modest — see the full breakdown below.

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Core Nutrients per 100 g

The six values MacroDrop shows on every meal card: energy, the three macros, fiber and sugars.

Calories
1.0 kcal
Protein
0.1 g
Carbs
0 g
Fat
0.0 g
Fiber
0 g
Sugars
0 g

Extended Nutrients

Grouped as in the app: lipids, minerals, vitamins and other compounds sit one level below the core six. Daily values follow the FDA 2,000 kcal reference.

Lipids
Saturated fat
0 g
0% DV
Minerals
Sodium
2.0 mg
0% DV
Potassium
49 mg
1% DV
Calcium
2.0 mg
0% DV
Magnesium
3.0 mg
1% DV
Iron
0.0 mg
0% DV
Zinc
0.0 mg
0% DV
Other compounds
Caffeine
40 mg

Understanding Coffee Nutrition

Black coffee is essentially calorie-free. At 1.0 kcal per 100 g serving, it provides negligible protein, carbohydrate and fat — none of the three macros are present in any meaningful amount.

For athletes and anyone tracking macros, coffee's own calories are trivial enough to ignore in a meal log. Its real relevance to training and recovery comes from caffeine, not macros — this cup carries 40mg. What usually adds meaningful calories to a cup of coffee is milk, cream or sugar, none of which are reflected in black coffee's numbers here.

Frequently Asked Questions

How many calories are in a 100 g serving of coffee?

A 100 g serving of coffee has 1.0 kcal, 0.1g protein, 0.0g fat and 0g carbohydrate.

How much protein is in coffee?

0.1g per 100 g serving.

Does coffee have carbs, sugar or protein?

Coffee has 0.1g protein per 100 g serving.

Which nutrients is coffee richest in?

No single micronutrient stands out sharply — see the full breakdown below.

Is coffee good for tracking macros?

Coffee itself contributes negligible protein, carbs or fat — its relevance to training and recovery comes from caffeine, not macros, so it isn't a meaningful source for hitting a protein or calorie target.

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MacroDrop tracks all of these nutrients — core and extended — from a photo, your voice or a barcode. Offline USDA database, 7,800 foods.

MacroDrop app — today screen with macros and extended nutrients
Data source

Values come from the USDA FoodData Central entry Beverages, coffee, brewed, prepared with tap water (FDC ID 171890), per 100 g. Daily values follow the FDA 2,000 kcal reference. Last reviewed August 2026.