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A long, firm cucumber with glossy deep-green skin, fine pale speckles and shallow ridges, shown whole beside a few round slices with crisp pale-green flesh and a watery center dotted with tiny seeds.
●Low GI
★Natural

Cucumber Calories

Low calorie, high water content, refreshing vegetable

In season: Spring · Summer

CALORIES · 100 G

15kcal

GI

15low

POTASSIUM · 100 G

147mg

FIBER · 100 G

0.5g

Quick answer

1 piece (medium) of Cucumber (200 g) has 30 calories. That works out to 15 calories per 100 g. It contains 7.2 g of carbs, 1.4 g of protein, 0.2 g of fat and 1 g of fiber. Its 32.8 µg of Vitamin K covers 27% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.

Cucumber Nutrition Facts

Selected: 1 piece (medium) · 200 g

30

KCAL / 200G

Carbs

7.2g

· 3% DV

Protein

1.4g

· 3% DV

Fat

0.2g

· 0% DV

Fiber

1g

· 4% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 80% · Protein 15% · Fat 5%

Cucumber nutrition facts table · 1 piece (medium) (200 g)

NutrientAmount% DV
Calories30 kcal
Total fat0.2 g0%
Saturated fat0.02 g0%
Trans fat0 g
Sodium4 mg0%
Total carbohydrate7.2 g3%
Fiber1 g4%
Protein1.4 g3%

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 Medium Cucumber?

ServingAmountCalories
1 piece (medium)200 g30 kcal
1 slice (thin)15 g2 kcal
1 slice (thick)25 g4 kcal
1 serving (medium)80 g12 kcal
100 g100 g15 kcal
1 piece (small)100 g15 kcal
1 cup (shredded)110 g17 kcal
1 cup (chopped)120 g18 kcal
1 piece (large)300 g45 kcal

Calculated from 15 calories per 100 g.

Frequently Asked Questions About Cucumber

Should cucumbers be refrigerated?

Usually, yes: store whole cucumbers in the refrigerator’s crisper drawer, dry and loosely wrapped or in a breathable bag. Keep them away from very cold spots, where they can develop soft, water-soaked patches.

Can you eat cucumber skin?

Yes, cucumber skin is edible. Rinse and rub the cucumber under running water before eating it; peeling is optional. If the skin tastes bitter or feels tough, peel that cucumber or discard it if the bitterness is strong.

Why do cucumbers taste bitter?

Cucumbers can taste bitter because of natural cucurbitacin compounds, sometimes concentrated near the stem end. If a cucumber tastes distinctly or intensely bitter, do not eat it; strong bitterness is not something to mask with seasoning.

Can you freeze cucumbers?

Yes, but freezing changes cucumber’s texture: after thawing, it becomes limp and releases water. Frozen cucumber is better suited to blended drinks or chilled soups than to salads, where fresh cucumber’s crispness matters.

How do you keep cut cucumber fresh?

Place cut cucumber in an airtight container in the refrigerator, with a clean paper towel to absorb excess moisture. Use it soon, and discard pieces that become slimy, smell off, or develop visible mold.

Can dogs eat cucumber?

Yes, dogs can generally have a few plain cucumber pieces as an occasional treat. Wash the cucumber, cut it into bite-sized pieces to reduce choking risk, and avoid giving dogs cucumber prepared with salt, dressing, or seasoning.

Are cucumber seeds safe to eat?

Yes, the soft seeds in an ordinary cucumber are safe to eat and usually do not need removing. In a very mature cucumber they may be larger and tougher; scoop them out if you prefer a smoother texture.

How do you stop cucumber from making salad watery?

For a less watery salad, slice the cucumber just before serving and avoid leaving it mixed with salt or dressing for long. For a firmer texture, you can remove the watery seed center before slicing.

Is cucumber good for weight loss?

Cucumber can fit into a weight-loss eating pattern because it adds crunch and volume to meals without being energy-dense. It does not cause weight loss by itself, but it can replace a more energy-dense snack or salad ingredient.

Does cucumber hydrate you?

Yes, cucumber contributes fluid because it contains a lot of water, so it can be a refreshing part of meals. It is not a substitute for drinking fluids, especially during heat, exercise, or illness.

Cucumber Vitamins & Minerals

Vitamins

Vitamin K

32.8µg · 27% DV

B5

0.6mg · 12% DV

Biotin

3µg · 10% DV

Vitamin C

5.6mg · 6% DV

Minerals

Copper

0.08mg · 9% DV

Potassium ⭐

294mg · 9% DV

Manganese

0.16mg · 7% DV

Phosphorus

48mg · 7% DV

Sodium

4mg · 0% DV

Cucumber Glycemic Index

GLYCEMIC INDEX

15
Low
0 Low5570100

GLYCEMIC LOAD

2
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Cucumber

To burn the 30 calories in 1 piece (medium) (200 g):

🚶

7min

Walking (5 km/h)

🏃

3min

Running (8 km/h)

🚴

4min

Cycling

🏊

3min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Cucumber?

Bauerngurke is a cucumber: a crisp, mild vegetable usually eaten fresh, though cucumbers are also preserved in pickles. Its clean, cooling taste and juicy bite make it easy to add to salads, sandwiches and snack plates. In Turkey, cucumber commonly appears at breakfast alongside tomatoes, olives and cheese, and is grated or chopped into yoghurt for cacık; elsewhere, it is familiar in salads and as a simple sliced snack.

Mostly water and very light, cucumber provides 15 calories per 100 g. Pair it with yoghurt, hummus or cheese for a more satisfying snack, or add it to a salad for freshness and crunch.

How Nutritious Is Cucumber?

Nutrient density

Medium

40/ 100

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

42/ 100

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 Cucumber Processed?

NOVA 1

Unprocessed

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 Cucumber Contain Allergens?

No known major allergens

Gluten free
Dairy free
Eggs free
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Cucumber Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Cucumber Fat Profile

SATURATED

0.02g

MONOUNSATURATED

0.02g

POLYUNSATURATED

0.04g

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18 kcal

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18 kcal

🫑

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🥄

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44 kcal

🫑

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20 kcal

🥗

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Oven-Roasted Mixed Vegetables

65 kcal

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Nutrition data compiled from USDA FoodData Central and scientific sources.