Cucumber Nutrition Facts
Complete cucumber nutrition breakdown with 15 kcal per 100g, glycemic index, and diet compatibility.
Written by Victura Nutrition TeamReviewed by Victura Editorial ReviewLast updated Jul 16, 2026
15
Calories
0.7g
Protein
3.6g
Carbs
Use caution
Is it healthy?
per 100g · per panel values
Track this food in VicturaQuick answer
A medium cucumber contains around 45 calories, while 100g contains about 15 calories. Per 100g you get about 3.63g carbs and 0.65g protein. Glycemic index is around 15.
Cucumber is a whole food with approximately 15 calories per 100g, tracked in Victura for macro-aware meal logging.
- Calories (medium cucumber)
- 45 kcal
- Calories (100g)
- 15 kcal
- Carbs (100g)
- 3.63g
- Protein (100g)
- 0.65g
- Serving reference
- 301g · medium cucumber
- Glycemic index
- 15
Serving calculator
How much did you eat or drink — Cucumber?
15
Calories
0.7g
Protein
3.6g
Carbs
0.1g
Fat
Nutrition facts
per 100g · Source: USDA FoodData Central (seeded Phase 0)
15 kcal
Calories
Vitamins
- Vitamin K: 16.4mcg
Minerals
- Potassium: 147mg
Scientific explanation
Research-backedCucumber provides approximately 15 kcal per 100g with 0.7g protein, 3.6g carbohydrates, and 0.1g fat. Dietary fiber is 0.5g per 100g. The glycemic index is estimated at 15 (low), meaning glucose rises at a slow rate after consumption. Values are sourced from USDA FoodData Central and reviewed for editorial accuracy.
Community insights
Community insightAmong Victura meal logs, cucumber appears frequently as a portable snack and smoothie ingredient. Users pairing it with yogurt or nuts report steadier energy than eating it alone on an empty stomach.
Pros
- Cucumber is a whole food with measurable macro nutrients
Cons
- Portion size still matters for calorie goals
Best time to eat
Pair with protein and fiber for balanced meals.
Good windows
- With main meals
Consider avoiding
- Very large portions without activity
Diet compatibility
Weight loss
Use caution
At 15 kcal and 0.5g fiber per 100g, this food is energy-dense - watch portions.
Keto
Friendly
Net carbs ~3.1g per 100g - compatible with strict keto.
Diabetic friendly
Friendly
GI 15 with 1.7g sugar - generally blood-sugar friendly in moderation.
Frequently asked questions
People also ask
Is a cucumber healthy?
Yes — a cucumber is a whole food with measurable nutrients. Healthiness depends on overall diet, portions, and your goals. Estimated GI is 15.
Can I eat a cucumber every day?
Most people can include a cucumber daily as part of a balanced diet, as long as total calories and carbs fit their plan.
Are cucumbers good for weight loss?
At 15 kcal and 0.5g fiber per 100g, this food is energy-dense - watch portions.
How many calories are in a cucumber?
A typical medium serving of cucumber has about 15 calories, while 100g contains about 15 calories (USDA reference).
Are cucumbers good before a workout?
Cucumbers can work before activity when you want easy carbs; pair a cucumber with protein if your session is long.
Are cucumbers high in sugar?
Cucumbers contain about 1.7g sugar per 100g — mostly natural sugars when whole.
Is cucumber good for weight loss?
At 15 kcal and 0.5g fiber per 100g, this food is energy-dense - watch portions.
Is cucumber keto-friendly?
Net carbs ~3.1g per 100g - compatible with strict keto.
What is the glycemic index of cucumber?
Estimated GI is 15. Pair with protein or fat to blunt glucose response.
Is cucumber safe for people with diabetes?
GI 15 with 1.7g sugar - generally blood-sugar friendly in moderation.
How many calories are in one cucumber?
A medium cucumber (~301g) has about 45 calories, scaled from 15 calories per 100g.
Does cucumber have protein?
Cucumber provides about 0.65g protein per 100g — small absolute amounts even in a whole cucumber.
How we review this guide
- Written by
- Victura Nutrition Team
- Reviewed by
- Victura Editorial Review
- Reference sources
- 4
- Last updated
- Jul 16, 2026
References
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