Cucumber is a cool, crisp vegetable that is about 95% water, with only around 15 calories per 100 grams. Botanically it is a fruit, but we eat it like a vegetable in salads, yogurt dishes, pickles and sandwiches. In Iran it is also eaten as a fruit, peeled and salted, and served with every guest’s fruit plate.
Cucumber nutrition (per 100 g, with skin, approximate)
- About 15 calories
- About 95 g water
- 0.5 g fiber, mostly in the skin
- Vitamin K: about 15% of daily needs
- Small amounts of vitamin C, potassium and magnesium
- Plant compounds such as cucurbitacins, flavonoids and lignans
10 benefits of cucumber
- Hydration: its high water content helps you stay hydrated, especially in warm weather or after exercise.
- Very few calories: a large cucumber has fewer than 50 calories, so it is a great snack when you are watching your weight.
- Fullness: water and fiber add volume to meals without many calories.
- Digestion: water and the fiber in the skin help keep digestion regular.
- Blood sugar: it has a very low glycemic load, so it suits people managing diabetes.
- Bones and blood clotting: vitamin K supports normal blood clotting and bone health.
- Blood pressure: potassium helps balance sodium; it works best as part of a diet rich in vegetables and low in salt.
- Antioxidants: flavonoids and other compounds help protect cells from damage.
- Skin: hydration and vitamin C support healthy-looking skin, and cool slices soothe tired, puffy eyes for a short time.
- Less salt and fat in meals: crunchy cucumber makes yogurt dips and salads satisfying, so you need fewer chips and heavy sauces.
These benefits are modest. Cucumber is a healthy, refreshing food, not a medicine.
How to choose cucumbers
- Pick firm cucumbers with smooth, bright green skin and no soft or yellow spots.
- Small Persian (mini) cucumbers have thin skin, few seeds and the best crunch.
- English (long) cucumbers are mild and almost seedless; field cucumbers often have thicker, waxed skin and larger seeds.
Easy ways to eat cucumber
- Shirazi salad with tomato, onion, mint and lime juice
- Mast-o-khiar: thick yogurt with chopped cucumber, dried mint and sometimes raisins and walnuts
- Tzatziki or raita with garlic and dill
- Quick pickled cucumbers ready in one hour
- Cucumber water: slices in a jug with lemon and mint
- Sandwiches and wraps for crunch
- Sticks with hummus as a snack
Storage
Keep whole cucumbers in the fridge, ideally wrapped in a paper towel inside a bag, for about a week. They dislike very cold spots and turn watery near the back of the fridge. Keep them away from bananas, tomatoes and melons, which release ethylene and speed up yellowing. Do not freeze fresh cucumbers; they turn mushy.
Tips and cautions
- Wash well. Keep the skin on if it is not waxed; the skin has most of the fiber and vitamin K.
- A bitter end usually comes from cucurbitacins. Cut off the bitter part.
- Some people get gas or burping from cucumber; seedless varieties are often easier to digest.
- If you take blood thinners such as warfarin, keep your vitamin K intake steady and ask your doctor.
- People with ragweed pollen allergy sometimes feel an itchy mouth after raw cucumber (oral allergy syndrome).
Frequently asked questions
Is it better to peel cucumbers?
No, unless the skin is waxed or bitter. The skin holds most of the fiber.
Can you eat cucumber every day?
Yes. For most people, a cucumber a day is a healthy, hydrating habit.
This is general information, not medical advice.
