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What is the Nutritional Value of 100g of Cucumbers? An In-Depth Look

4 min read

A 100g serving of raw, unpeeled cucumber is composed of over 95% water, making it an incredibly hydrating and low-calorie food choice. This refreshing vegetable offers a range of vitamins and minerals, despite its modest calorie count. Here is a breakdown of what is the nutritional value of 100g of cucumbers.

Quick Summary

A 100g serving of cucumber contains about 15 calories, high water content, and a small but valuable amount of essential vitamins like K and C, plus minerals such as potassium and magnesium.

Key Points

  • High in Water: Cucumbers are over 95% water, providing significant hydration benefits.

  • Low in Calories: A 100g serving contains only about 15 calories, making it an excellent diet food.

  • Rich in Vitamin K: The vegetable is a good source of Vitamin K, essential for blood clotting and bone health.

  • Potassium and Minerals: Cucumbers provide beneficial amounts of potassium and magnesium, supporting heart health and fluid balance.

  • Nutrient-Dense Peel: Eating cucumbers unpeeled maximizes fiber and antioxidant intake.

  • Antioxidant Properties: Phytonutrients like cucurbitacins and flavonoids offer anti-inflammatory and antioxidant benefits.

In This Article

Macronutrient Breakdown (per 100g)

Cucumbers are known for their high water content and mild, refreshing flavor, which is reflected in their macronutrient profile. A typical 100g serving of raw, unpeeled cucumber provides approximately 15 calories. This makes it an excellent choice for a low-calorie diet or for those looking for a light and healthy snack. Most of these calories come from carbohydrates, specifically natural sugars, with minimal amounts of fat and protein. It is a food you can eat in high volume without significantly impacting your daily caloric intake. The macronutrient composition is as follows:

  • Calories: Around 15 kcal
  • Carbohydrates: Approximately 3.6g, with about 1.7g being natural sugars
  • Protein: About 0.7g
  • Total Fat: Less than 0.1g, with zero cholesterol
  • Dietary Fiber: Around 0.5g

The Importance of High Water Content

One of the most significant aspects of the nutritional value of 100g of cucumbers is its water content, which exceeds 95%. This makes cucumbers a fantastic way to boost daily hydration, especially during warmer months or after physical activity. Staying properly hydrated is crucial for numerous bodily functions, including regulating body temperature, lubricating joints, and aiding in nutrient transportation. The high water content also contributes to the feeling of fullness, which can aid in weight management by reducing overall food intake.

Key Vitamins and Minerals

Beyond the macronutrients, cucumbers contain a range of important vitamins and minerals, albeit in small to moderate quantities. These micronutrients contribute to various aspects of health, from bone density to immune function.

  • Vitamin K: A 100g serving provides about 16.4 mcg of Vitamin K, which is a significant portion of the recommended daily intake. Vitamin K is vital for blood clotting and plays a role in promoting strong, healthy bones by helping the body absorb calcium.
  • Potassium: With roughly 147mg per 100g, cucumbers offer a decent amount of potassium. This mineral is crucial for maintaining proper fluid balance, nerve signals, and muscle contractions. It also helps regulate blood pressure by lessening the effects of sodium.
  • Vitamin C: A 100g serving provides about 2.8mg of Vitamin C. While not as rich in Vitamin C as citrus fruits, this antioxidant helps protect cells from damage, supports the immune system, and promotes healthy skin.
  • Magnesium: Containing approximately 13mg of magnesium, cucumbers contribute to nerve function, blood glucose control, and a healthy heart.
  • Other Micronutrients: Trace amounts of other essential minerals like manganese, phosphorus, and zinc are also present.

Peeled vs. Unpeeled: Maximizing Nutritional Value

The peel of a cucumber is a concentrated source of nutrients, and choosing to eat it unpeeled can significantly increase the nutritional benefits. The skin contains higher concentrations of fiber and antioxidants, including flavonoids and tannins, which have anti-inflammatory properties. Leaving the skin on also boosts the intake of Vitamin K and Vitamin A. For this reason, it is generally recommended to consume cucumbers unpeeled, after thoroughly washing them, to maximize their nutritional potential. Here is a comparison of unpeeled versus peeled nutritional data based on available information:

Nutrient (per 100g) Unpeeled Cucumber Peeled Cucumber
Calories ~15 kcal ~12 kcal
Dietary Fiber ~0.5g ~0.3g
Vitamin K ~16.4 mcg ~7.2 mcg
Vitamin C ~2.8 mg ~3.2 mg
Potassium ~147 mg ~136 mg

Note: Nutritional values can vary slightly depending on the variety and ripeness of the cucumber.

Antioxidant and Anti-inflammatory Properties

Cucumbers contain a number of beneficial plant compounds known as phytonutrients. These include cucurbitacins and flavonoids, which contribute to the vegetable's antioxidant and anti-inflammatory effects. Antioxidants help fight free radicals in the body, which can cause cellular damage and lead to chronic diseases. The anti-inflammatory properties can also help reduce swelling and irritation throughout the body. Some research suggests that the cucurbitacins may have specific anti-cancer properties by inhibiting cancer cell growth.

How to Incorporate Cucumbers into Your Diet

The mild flavor and crisp texture of cucumbers make them incredibly versatile in the kitchen. They can be easily integrated into a wide range of meals and snacks.

  • Salads: Add sliced or diced cucumber to your favorite green salads for extra crunch and hydration.
  • Snacks: Enjoy cucumber sticks with hummus, yogurt dip, or on their own for a low-calorie, refreshing bite.
  • Drinks: Infuse your water with cucumber slices and mint for a hydrating, detox-friendly beverage.
  • Sandwiches and Wraps: Layer cucumber slices into sandwiches and wraps for a crisp, fresh element.
  • Smoothies: Blend cucumber into your morning smoothie for a nutrient boost without altering the flavor significantly.

Conclusion

In summary, the nutritional value of 100g of cucumbers lies not in a massive calorie or protein count but in its impressive hydration capacity and rich profile of micronutrients. With over 95% water, they are an excellent tool for staying hydrated and managing weight. They also provide valuable doses of Vitamin K for bone health and potassium for blood pressure regulation. To maximize the benefits, it is best to consume cucumbers with their skin intact. These humble vegetables prove that healthy eating doesn't have to be complicated, offering a simple yet effective way to support your overall well-being. Incorporate them regularly into your diet to enjoy their crisp texture and notable health advantages.

Explore more health benefits of cucumbers at the Cleveland Clinic.

Frequently Asked Questions

A 100g serving of raw, unpeeled cucumber contains approximately 15 calories.

Yes, cucumbers are excellent for weight loss due to their high water and low-calorie content. Their bulk helps you feel full without consuming many calories.

Yes, cucumbers are highly hydrating, consisting of more than 95% water, making them a great way to supplement your daily fluid intake.

For maximum nutritional value, it is better to eat cucumbers unpeeled. The peel contains higher concentrations of fiber, Vitamin K, and other antioxidants.

Cucumbers contain several vitamins, including Vitamin K, Vitamin C, and various B vitamins like B1, B5, and B7.

A 100g serving of unpeeled cucumber contains approximately 0.5g of dietary fiber.

Yes, cucumbers are a source of potassium. A 100g serving contains about 147mg of this important mineral.

Cucumbers are beneficial for blood pressure due to their potassium content and low sodium. Potassium helps regulate the effects of sodium in the body.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.