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 Victura

Quick 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
Cucumber food photo
Cucumber — real food photo
Cucumber portion size visual
Portion size
Cucumber calories and macros infographic
Calories & macros

Serving calculator

How much did you eat or drinkCucumber?

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

Protein0.7g
Carbohydrates3.6g
Fat0.1g
Fiber0.5g
Sugar1.7g
Glycemic index15low

Vitamins

  • Vitamin K: 16.4mcg

Minerals

  • Potassium: 147mg

Scientific explanation

Research-backed

Cucumber 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 insight

Among 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

Yes — a cucumber is a whole food with measurable nutrients. Healthiness depends on overall diet, portions, and your goals. Estimated GI is 15.

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

Revision & correction policy

References

  1. USDA FoodData Central(usda)
  2. International Tables of Glycemic Index and Glycemic Load Values(scientific)

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