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Unsweetened hot coffee Calories
Very low calorie, unsweetened, contains caffeine
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 cup (medium) of Unsweetened hot coffee (240 g) has 2 calories. That works out to 1 calories per 100 g. It contains 0 g of carbs, 0.2 g of protein, 0 g of fat and 0 g of fiber. Its 0.2 mg of B2 covers 14% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Unsweetened hot coffee Nutrition Facts
Selected: 1 cup (medium) · 240 g
2
KCAL / 240G
Carbs
0g
· 0% DV
Protein
0.2g
· 0% DV
Fat
0g
· 0% DV
Fiber
0g
· 0% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 0% · Protein 100% · Fat 0%
Unsweetened hot coffee nutrition facts table · 1 cup (medium) (240 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 2 kcal | |
| Total fat | 0 g | 0% |
| Saturated fat | 0 g | 0% |
| Trans fat | 0 g | |
| Sodium | 4.8 mg | 0% |
| Total carbohydrate | 0 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 0.2 g | 0% |
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 Cup of Unsweetened hot coffee?
| Serving | Amount | Calories |
|---|---|---|
| 1 cup (medium) | 240 g | 2 kcal |
| 1 serving (mini) | 30 g | 0 kcal |
| 1 piece (small) | 60 g | 1 kcal |
| 100 g | 100 g | 1 kcal |
| 1 cup (small) | 120 g | 1 kcal |
| 1 cup (medium) | 180 g | 2 kcal |
| 1 cup (large) | 240 g | 2 kcal |
| 1 cup (extra large) | 350 g | 4 kcal |
| 2 cup (double) | 480 g | 5 kcal |
Calculated from 1 calories per 100 g.
Frequently Asked Questions About Unsweetened hot coffee
How much caffeine is in unsweetened hot coffee?
The caffeine in unsweetened hot coffee varies with the beans, serving size, and brewing method. A cup of filter coffee, espresso-based coffee, or instant coffee can differ substantially; leaving out sugar does not reduce its caffeine.
Can unsweetened hot coffee keep you awake?
Yes, the caffeine in unsweetened hot coffee can delay sleep or make it less restful, especially if you are sensitive to caffeine. Avoid drinking it close to bedtime if you notice it affects your sleep.
Does unsweetened hot coffee dehydrate you?
No, unsweetened hot coffee still contributes fluid, so a usual cup does not simply dehydrate you. Caffeine can have a mild diuretic effect, particularly for people who do not drink coffee regularly, but coffee can count toward fluid intake.
Is it okay to drink unsweetened hot coffee on an empty stomach?
Yes, most people can drink unsweetened hot coffee on an empty stomach. It may trigger heartburn, nausea, or stomach discomfort in some people, so having it with food can help if you experience those symptoms.
Does unsweetened hot coffee break a fast?
For intermittent fasting, plain unsweetened hot coffee is generally treated as compatible with a fast because it contains very little energy. For religious fasting, including Ramadan, drinking it during fasting hours does break the fast.
Can unsweetened hot coffee raise blood pressure?
Yes, caffeine in unsweetened hot coffee can cause a temporary rise in blood pressure, though the effect varies and may be smaller in regular coffee drinkers. If you monitor your blood pressure, avoid measuring it immediately after coffee.
Does unsweetened hot coffee help with weight loss?
Unsweetened hot coffee may briefly reduce appetite or increase alertness, but it does not reliably cause weight loss. It can replace a sugar-sweetened drink, while adding syrups, cream, or sugar changes that comparison.
Why does unsweetened hot coffee make some people need the bathroom?
Unsweetened hot coffee can stimulate bowel activity and prompt a bowel movement in some people. Both caffeine and other compounds in coffee may contribute, so the effect can happen with decaffeinated coffee too.
Can you reheat unsweetened hot coffee?
Yes, you can reheat unsweetened hot coffee, but reheating may make its flavor harsher or more bitter. For better taste, drink it fresh; discard coffee that has been left out for an extended time.
Does unsweetened hot coffee stain your teeth?
Yes, coffee pigments can gradually stain tooth surfaces even when the coffee is unsweetened. Rinsing your mouth with water after drinking and keeping up with regular dental care can help limit visible staining.
Unsweetened hot coffee Vitamins & Minerals
Vitamins
B2
0.18mg · 14% DV
B3
0.46mg · 3% DV
Folate
4.8µg · 1% DV
B1
0mg · 0% DV
Minerals
Potassium ⭐
118mg · 3% DV
Manganese
0.07mg · 3% DV
Copper
0.02mg · 2% DV
Magnesium
7.2mg · 2% DV
Sodium
4.8mg · 0% DV
Unsweetened hot coffee Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Unsweetened hot coffee
To burn the 2 calories in 1 cup (medium) (240 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Unsweetened hot coffee?
Unsweetened hot coffee is brewed by pouring hot water over ground roasted coffee beans; it may be made with a filter, an espresso machine or another brewing method. Without sugar, its roasted aroma and naturally bitter, sometimes fruity or nutty notes come through. Around the world it is served in many ways: as a morning mug at home, a takeaway drink, or after a meal. In cafés, it can be enjoyed black or paired with a small bite.
It is very low in calories and contains caffeine, while providing virtually no protein, carbohydrate or fat. Drinking it black keeps it light; if you prefer a softer taste, have it with milk on the side or choose a less intense brew rather than adding sugar.
How Nutritious Is Unsweetened hot coffee?
Nutrient density
Low
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
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 Unsweetened hot coffee Processed?
NOVA 2
Minimally 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 Unsweetened hot coffee Contain Allergens?
No known major allergens
Which Diets Is Unsweetened hot coffee Good For?
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
Unsweetened hot coffee Fat Profile
SATURATED
0g
MONOUNSATURATED
0g
POLYUNSATURATED
0g
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Nutrition data compiled from USDA FoodData Central and scientific sources.