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How many carbs are in 1 cup of raw cucumber?

3 min read

According to the USDA, a 1-cup serving of raw, sliced cucumber with the peel contains approximately 3.8 grams of total carbohydrates. This low carbohydrate count makes it an excellent choice for those managing their carb intake or following a ketogenic diet.

Quick Summary

A single cup of raw cucumber provides a minimal amount of carbohydrates, most of which are fiber and natural sugars. Its low carb content and high water percentage make it a hydrating and ideal snack for various dietary plans. Nutritional information varies slightly based on whether the peel is included.

Key Points

  • Carb Count: A 1-cup serving of raw, sliced cucumber contains approximately 3.8 grams of total carbohydrates.

  • Net Carbs: With roughly 0.5 grams of dietary fiber, the net carb count is extremely low, at about 3.3 grams per cup.

  • Hydrating: Cucumbers are composed of over 95% water, providing significant hydration with very few calories.

  • Dietary Versatility: Its low carb count makes it an excellent addition to low-carb, keto, and weight management diets.

  • Nutrient Source: Cucumbers offer small but valuable amounts of vitamins like K and C, plus minerals like potassium.

  • Peel Impact: Leaving the peel on adds a small amount of extra fiber, but even peeled, the carb count remains very low.

In This Article

Total Carbohydrates in Raw Cucumber

When considering the nutritional profile of raw cucumber, the total carbohydrate content is a primary factor for many diets. For one cup of raw, sliced cucumber (approximately 104g), the total carbohydrates generally fall between 3.8g and 4g. This low figure is a major reason cucumbers are popular among those looking to reduce their carb intake without sacrificing volume or hydration.

Net Carbs: The Low-Down for Keto Dieters

For those on a ketogenic or other very low-carb diet, understanding net carbs is more important than total carbs. Net carbs are calculated by subtracting the dietary fiber from the total carbohydrates, as fiber is a type of carb the body doesn't digest or absorb for energy. A cup of raw, sliced cucumber (with peel) contains about 0.5g to 1g of dietary fiber.

To calculate the net carbs for a 1-cup serving, you would take the total carbs (approx. 3.8g) and subtract the fiber (approx. 0.5g), resulting in around 3.3g of net carbs. This extremely low number confirms that cucumber is a highly keto-friendly vegetable, allowing you to enjoy a refreshing and crunchy snack without disrupting ketosis.

The Impact of Peeling

One factor that slightly alters the carbohydrate count is whether the cucumber is peeled. The majority of a cucumber's fiber is found in its skin. For a peeled cucumber, the carb and fiber numbers are slightly lower, though the difference is minimal. For instance, a 1-cup serving of peeled, sliced cucumber contains about 2.6g of total carbs and 0.8g of fiber, yielding only 1.6g of net carbs. Keeping the peel on adds a small amount of extra fiber, but peeling it reduces the carb count slightly for those aiming for the absolute minimum. Peeling also removes some vitamins and minerals, like Vitamin K, which is more concentrated in the skin.

Nutritional Comparison: Cucumber vs. Other Low-Carb Vegetables

To put cucumber's carb count into perspective, here is a comparison with other popular low-carb vegetables. All measurements are based on a 1-cup serving.

Vegetable Calories (approx.) Total Carbs (approx.) Fiber (approx.) Net Carbs (approx.)
Raw Cucumber (with peel) 16 kcal 3.8 g 0.5 g 3.3 g
Celery 16 kcal 3.0 g 1.6 g 1.4 g
Broccoli Florets 31 kcal 6.0 g 2.4 g 3.6 g
Zucchini (chopped) 17 kcal 3.1 g 1.0 g 2.1 g
Iceberg Lettuce 14 kcal 3.0 g 1.2 g 1.8 g

Health Benefits and Smart Snack Ideas

Beyond its low carb content, cucumber offers several health benefits. Cucumbers are over 95% water, which makes them incredibly hydrating and perfect for staying refreshed, especially in hot weather. They also contain small amounts of important nutrients such as Vitamin K, Vitamin C, potassium, and magnesium. The antioxidants found in cucumbers, including beta-carotene, help fight cell-damaging free radicals in the body.

  • For a refreshing snack: Slice up a cup of raw cucumber and pair it with a low-carb dip like hummus or a creamy herb and garlic yogurt dip. Adding a sprinkle of salt and pepper and a squeeze of fresh lemon juice is another simple yet flavorful option.
  • In salads and sides: Dice a cup of cucumber and add it to a Greek salad with feta cheese, tomatoes, and olives. For a unique side dish, create a quick cucumber and dill salad with a touch of vinegar.
  • As a substitute: Cucumber slices can serve as a low-carb alternative to crackers when serving dips.

Conclusion

In summary, one cup of raw, sliced cucumber is a very low-carb food, containing approximately 3.8 grams of total carbs. With its minimal net carb count of about 3.3 grams, it is an excellent choice for individuals on ketogenic and other low-carb eating plans. This high-water-content vegetable provides hydration and a small boost of essential vitamins and minerals, making it a healthy and versatile addition to any diet. Whether eaten raw as a simple snack or incorporated into more complex dishes, cucumber is a nutritious and guilt-free way to add crunch and volume to your meals.

Final Takeaways

  • Low in Carbs: One cup of raw cucumber has around 3.8g of total carbohydrates.
  • Keto-Friendly: With about 3.3g of net carbs per cup, it is ideal for low-carb and ketogenic diets.
  • High in Water: Its high water content makes it an excellent source of hydration.
  • Nutrient-Dense: Contains Vitamin K, Vitamin C, and other essential minerals.
  • Versatile Snack: Can be eaten raw, with dips, or in salads.

For more detailed nutritional information and health benefits, see the article on Verywell Fit.

Frequently Asked Questions

Yes, cucumbers are an excellent food for weight loss due to their very low calorie count and high water content. They help you feel full and stay hydrated without adding significant calories or carbs.

Yes, but the difference is minimal. A peeled cucumber has slightly fewer carbs and fiber, as most of the fiber is in the skin. However, leaving the skin on provides more nutrients, including Vitamin K.

No, cucumbers are very unlikely to raise your blood sugar levels. They have a low glycemic index of 15 and minimal carbohydrates, making them a safe choice for people with diabetes.

Net carbs are total carbohydrates minus dietary fiber. For a food like cucumber, which is low in total carbs and includes some fiber, the net carb count is very low. This is important for those on a keto diet who need to track their digestible carbs.

Yes, all standard varieties of raw cucumbers, such as English, garden, and Persian, are very low in carbohydrates. Their nutritional profiles are very similar.

A 1-cup serving of raw, sliced cucumber (with peel) contains approximately 0.5 to 1 gram of dietary fiber. This is a small but beneficial amount.

Healthy ways to eat cucumbers include slicing them for a refreshing snack, adding them to salads, using them as a low-carb vehicle for dips like hummus, or infusing them in water for a hydrating beverage.

References

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Medical Disclaimer

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