1 piece (medium) of Cucumber (raw) (120 g) has 18 calories. That works out to 15 calories per 100 g. It contains 4.3 g of carbs, 0.8 g of protein, 0.1 g of fat and 0.6 g of fiber. Its 19.7 µg of Vitamin K covers 16% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.

What is Cucumber (raw)?

Cucumber is the crisp, mild-tasting fruit of a climbing plant, though it is usually treated as a vegetable in the kitchen. The dark-green, elongated type is commonly eaten raw: sliced into salads and sandwiches, served alongside dips, or simply enjoyed as a cool snack. In many places, it also appears in pickles, while fresh cucumber is a familiar addition to meals from South Asian raita to Mediterranean salads.

It is mostly water and very low in calories, making it an easy way to add crunch and freshness to a light meal. Pair it with yogurt, herbs and lemon for a quick side, or add protein-rich toppings if you want a more filling snack. Wash it well and keep the peel on if you enjoy its extra bite.

Cucumber (raw) Nutrition Facts

Selected: 100 g

KCAL / 100G

Carbs

3.6g

· 1% DV

Protein

0.7g

· 1% DV

Fat

0.1g

· 0% DV

Fiber

0.5g

· 2% 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 (raw) Vitamins & Minerals

Vitamins

Vitamin K

16.4µg · 14% DV

Vitamin A

105µg · 12% DV

0.26mg · 5% DV

0.03mg · 3% DV

Minerals

Potassium ⭐

147mg · 4% DV

Magnesium

13mg · 3% DV

Phosphorus

24mg · 3% DV

Calcium

16mg · 2% DV

How Nutritious Is Cucumber (raw)?

Nutrient density

Medium

35/ 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.

Cucumber (raw) Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

0.5

Low

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

How to Burn Off Cucumber (raw)

To burn the 15 calories in 100 g:

🚶

4min

Walking (5 km/h)

🏃

2min

Running (8 km/h)

🚴

2min

Cycling

🏊

2min

Swimming

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

Is Cucumber (raw) 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 (raw) 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 (raw) 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

Cucumber (raw) Fat Profile

SATURATED

MONOUNSATURATED

POLYUNSATURATED

0.02g

Compare Cucumber (raw)

🥒vs🍅

Cucumber (raw) vs Tomato3 kcal fewer per 100 g

→🥒vs🥗

Cucumber (raw) vs Mixed Green Salad3 kcal fewer per 100 g

→🥒vs🫑

Cucumber (raw) vs Red Pepper16 kcal fewer per 100 g

→🥒vs🥄

Cucumber (raw) vs Boiled Beetroot29 kcal fewer per 100 g

→

Foods Similar to Cucumber (raw)

🍅

Tomato

18 kcal

🥗

Mixed Green Salad

18 kcal

🫑

Red Pepper

31 kcal

🥄

Boiled Beetroot

44 kcal

🫑

Green pepper

20 kcal

🥗

Potato Salad

110 kcal

🥗

Arugula

25 kcal

🥕🥦🍆

Oven-Roasted Mixed Vegetables

65 kcal

Frequently Asked Questions About Cucumber (raw)

Is cucumber good for weight loss?

Yes, cucumber can fit well into a weight-loss eating pattern because its high water content adds volume with few calories. It does not cause weight loss on its own, but it can replace more energy-dense snacks or bulk out a meal.

Should you peel a cucumber before eating it?

No, peeling is not necessary if the cucumber is clean and the skin is pleasant to eat. The skin adds texture and some fiber. Wash the cucumber under running water first, even if you plan to peel it.

How should you store cucumbers to keep them fresh?

Store cucumbers in the refrigerator, ideally in the crisper drawer and loosely wrapped to limit moisture loss. Keep cut cucumber in a covered container in the fridge, and use it before it becomes watery or soft.

Can you eat cucumber seeds?

Yes, the soft seeds in a cucumber are edible and usually do not need to be removed. If the center is especially watery or the seeds are large, scoop it out before adding cucumber to a salad or sandwich.

Why does cucumber taste bitter?

Cucumber can taste bitter because of naturally occurring cucurbitacins, whose levels may be affected by growing conditions. Do not eat a cucumber that tastes strongly bitter. If the bitterness is mild, trim the end and taste a small piece.

Can you freeze cucumber?

Yes, cucumber can be frozen, but it loses its crisp texture and releases water as it thaws. Thawed cucumber is usually a poor choice for fresh salads; use it in a blended cold drink or another recipe where crispness is unimportant.

Do you need to wash cucumber before eating it?

Yes, rinse cucumber under running water and gently rub the surface before cutting or eating it. Washing first matters even when you plan to remove the skin, since a knife can carry dirt from the outside onto the flesh.

Is cucumber a fruit or a vegetable?

Botanically, cucumber is a fruit because it develops from a flower and contains seeds. In cooking and everyday use, it is treated as a vegetable, usually eaten in salads, sandwiches, and other savory dishes.

Does cucumber cause bloating or burping?

It can cause burping or bloating in some people, although many eat cucumber without symptoms. If you notice discomfort, try a smaller portion or peel it; compare how you feel rather than assuming cucumber affects everyone the same way.

How can you tell if a cucumber is fresh?

Choose a cucumber that feels firm, with taut skin and no soft spots, shriveling, or bruises. A limp or wrinkled cucumber has lost freshness and may have a watery texture. Color alone is not a reliable test.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026