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Black coffee Calories
Unsweetened, milk-free coffee with very low calories.
CALORIES
GI
POTASSIUM
FIBER
Black coffee Nutrition Facts
Selected: 100 g
1
KCAL / 100G
Carbs
0g
· 0%
Protein
0.1g
· 100%
Fat
0g
· 0%
Fiber
0g
Black coffee Vitamins & Minerals
Vitamins
B2
0.08mg · 6% DV
B3
0.19mg · 1% DV
Folate
2µg · 1% DV
Vitamin A
0µg · 0% DV
Minerals
Magnesium
3mg · 1% DV
Potassium ⭐
49mg · 1% DV
Calcium
2mg · 0% DV
Iron
0mg · 0% DV
Black coffee Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is Black 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 Black coffee Contain Allergens?
No known major allergens
Which Diets Is Black 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
Black coffee Fat Profile
SATURATED
0g
MONOUNSATURATED
0g
POLYUNSATURATED
0g
Foods Similar to Black coffee
Black coffee — Frequently Asked Questions
Can you drink black coffee on an empty stomach?
Most healthy adults can drink black coffee on an empty stomach, but it may cause nausea, heartburn, or jitters in sensitive people. If you have reflux or gastritis symptoms, having it with or after food may be more comfortable.
Does black coffee dehydrate you?
At amounts you are accustomed to, coffee does not cancel out your daily fluid intake. It is still best to drink water throughout the day rather than relying on coffee for hydration.
Is black coffee best before a workout?
Caffeine may improve alertness and perceived exercise performance for some people when taken before training. Try it early enough to assess your tolerance and avoid disrupting sleep after later workouts.
Can black coffee at night affect sleep?
Yes. Caffeine can delay falling asleep and reduce sleep quality, especially in people who are sensitive to it. Limiting coffee later in the day may help protect sleep.
Can black coffee make acid reflux worse?
Coffee can trigger heartburn, reflux, or indigestion in some people, although tolerance varies. Smaller servings, lower-acid options, or decaffeinated coffee may be worth trying if symptoms occur.
Why does black coffee make some people need the bathroom?
Coffee can stimulate bowel movements in some people, and the response is not caused by caffeine alone. If it causes urgency or loose stools, reducing the amount or changing the timing may help.
Does black coffee interfere with iron absorption?
Compounds in coffee can reduce absorption of non-heme iron, the form found in plant foods. People with iron deficiency may benefit from having coffee separately from iron-rich meals and iron supplements.
Can black coffee raise blood pressure?
Caffeine can cause a temporary rise in blood pressure, particularly in people who do not consume it regularly. Anyone with hypertension, palpitations, or an irregular heartbeat should discuss their individual intake with a clinician.
Is filter coffee or espresso the better choice?
When served without sugar, syrups, or cream, both can fit as black coffee; the main differences are strength, flavor, and drinking speed. Paper-filtered coffee may be preferable for people managing cholesterol because it removes more coffee oils than unfiltered brewing methods.
Can brewed black coffee be frozen?
Yes. Freeze brewed coffee in ice-cube trays to chill iced coffee without watering it down. Store it covered or in an airtight container and use it reasonably soon for the best flavor.
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Nutrition data compiled from USDA FoodData Central and scientific sources.