Black Coffee
Per serving: 1 cup brewed black coffee (237g)
About Black Coffee
One cup of brewed black coffee provides approximately 2 calories, a trace amount of protein, and essentially no carbohydrate, fat, fiber, or net carbs. It consists almost entirely of water, and glycemic index is not applicable for plain coffee because it contains negligible carbohydrate.
Black coffee nutrition includes small amounts of riboflavin, pantothenic acid, potassium, magnesium, manganese, and niacin. Its better-known compounds are caffeine and polyphenols such as chlorogenic acids, whose quantities vary with the bean, roast, grind, and brewing method.
Black coffee does not provide meaningful food satiety, although caffeine may temporarily reduce perceived fatigue. Added sugar, cream, condensed milk, and flavored syrups can transform a nearly calorie-free beverage into a substantial source of calories and rapidly digestible carbohydrate.
At-a-Glance Stats
Macronutrient Breakdown
2 kcal
Total calories per 1 cup brewed black coffee (237g)
Protein
Builds & repairs muscle tissue
1% of typical daily value
Carbohydrates
Primary fuel source for energy
0% of typical daily value
Total Fat
Supports hormones & nutrient uptake
0% of typical daily value
Dietary Fiber
Feeds gut bacteria & aids digestion
0% of typical daily value
Calories by Serving Size
All values are approximate. Actual nutrition may vary by apple variety (Fuji, Gala, Granny Smith, etc.).
Key Health Benefits
- 1
Black coffee provides fluid and virtually no calories when consumed without sugar, cream, or flavored syrups.
- 2
Caffeine can temporarily improve alertness, attention, and perceived exercise effort in caffeine-tolerant adults.
- 3
Coffee contains chlorogenic acids and other polyphenols with antioxidant activity.
- 4
Replacing sweetened coffee beverages with black coffee can sharply reduce added-sugar and calorie intake.
- 5
Its negligible carbohydrate content means plain black coffee has no meaningful glycemic load, although individual caffeine responses can vary.
Vitamins & Minerals
% Daily Value (2,000 cal diet):
≥20% High10-19% Good<10% LowExpert Tip
Keep coffee black or use a modest amount of unsweetened milk to avoid converting it into a high-calorie drink. Limit or time caffeine according to your tolerance, and avoid late-day intake when it reduces sleep quality.
Diet Compatibility
Frequently Asked Questions
How many calories are in Black Coffee?›
Black Coffee contains 2 calories per 1 cup brewed black coffee (237g). This includes 0.3g protein (1.2 kcal), 0g carbohydrates (0 kcal), and 0g fat (0 kcal).
How much protein does Black Coffee have?›
Black Coffee provides 0.3g of protein per 1 cup brewed black coffee (237g).
Is Black Coffee good for weight loss?›
Its negligible carbohydrate content means plain black coffee has no meaningful glycemic load, although individual caffeine responses can vary. With 2 calories per serving, it can fit well within a calorie-controlled diet.