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Are Cucumbers Keto-Friendly?

Cucumbers on a kitchen counter

Are Cucumbers Keto-Friendly? Yes, they are! Cucumbers are not only crunchy and refreshing, but they also fit neatly into a ketogenic eating plan, thanks to their low net carb content.

In this article, we'll dive deep into the world of cucumbers, breaking down their carb content, discussing their place in a keto diet, and exploring their nutritional value.

From the health implications of incorporating cucumbers into your keto diet to creative ways of including them in your meals, this comprehensive guide will provide you with all the information you need.

Whether you're a long-time keto follower or just getting started, read on to learn more about the role cucumbers can play in your keto journey.


  • Yes, cucumbers are keto-friendly, with a low net carb content of 2.95g per 100g.
  • Cucumbers provide essential nutrients like Potassium, Magnesium, and Vitamin C, and are high in water content, making them a hydrating choice.
  • There are unique ways to include cucumbers in your keto diet—from salads and smoothies to cucumber boats.

Are Cucumbers Keto-Friendly?

Cucumbers are indeed keto-friendly. The nutritional profile of cucumbers aligns well with the requirements of a ketogenic diet. To be specific, a 100g serving of cucumbers contains a mere 2.95g of net carbs.

This low carbohydrate content is a key factor that makes cucumbers suitable for a keto diet. The ketogenic diet emphasizes low-carb intake, and with cucumbers having only 2.95g of carbs per 100g, they naturally fit into this dietary plan. In addition, the typical serving size for cucumbers is usually around 100g, so it's easy to incorporate this vegetable into your meals without worrying about exceeding your daily carb limit.

Can You Have Cucumbers on a Strict Keto Diet?

Indeed, cucumbers can fit comfortably into a strict ketogenic diet. Given the low carbohydrate content of cucumbers, consuming them should not disrupt the state of ketosis, which is crucial in a ketogenic diet.

A strict ketogenic diet typically involves limiting carbohydrate intake to less than 20g per day. With cucumbers containing just 2.95g of net carbs per 100g serving, they align well within this limit. Therefore, even on a strict keto diet, cucumbers can be enjoyed without worry.

There are individuals who follow a more moderate approach to keto or low-carb diet, where the daily carb intake is limited to 30-50g of net carbs. For such individuals, cucumbers can be included more freely in their diet given their low carb content.

Carbs In Cucumbers

Cucumbers contain a minimal amount of net carbs, making them an excellent choice for a ketogenic diet. Specifically, a 100g serving of cucumbers has only 2.95g of net carbs. This is significantly low, allowing you to enjoy cucumbers without worrying about a drastic increase in your daily carb intake.

Cucumbers Nutrition Facts

In a 100g serving, cucumbers provide a mere 15 kcal, making them a low-calorie choice. They are primarily composed of water (95.23g), with minor amounts of carbohydrates (3.63g), protein (0.65g), and virtually no fat (0.11g), embodying the characteristic of a lean, hydration-aiding food.

Diving into the micronutrient profile, cucumbers are rich in vitamin K (16.4µg), a nutrient imperative for bone health and blood clotting. They also offer a good amount of vitamin C (2.8mg), beneficial for the immune system, and an array of B vitamins like B5 (0.259mg) and B9 (7µg), known for energy production and DNA synthesis respectively.

Minerals in cucumbers include potassium (147mg), magnesium (13mg), and calcium (16mg), contributing to electrolyte balance, muscle function, and bone health respectively. Moreover, cucumbers contain trace amounts of iron (0.28mg) and zinc (0.20mg), essential for oxygen transport and immune function.

Nutrient NameAmount and Unit per 100g
Carbohydrate, by difference 2.95g
Total fats 0.18g
Protein 0.62g
Sodium, Na 1.52mg
Potassium, K 169.6mg
Magnesium, Mg 10.11mg
Calcium, Ca 16.34mg
Copper, Cu 0.06mg
Molybdenum, Mo 3.72ug
Phosphorus, P 23.23mg
Zinc, Zn 0.2mg
Nitrogen 0.1g
Manganese, Mn 0.08mg
Biotin 0.96ug
Water 95.87g
Nutritional data is sourced from the US Department of Agriculture's FoodData Central system. Please see Cast Iron Keto's editorial and research standards for more information.

Health Implications of Cucumbers on a Keto Diet

Cucumbers are a good source of various nutrients beneficial to our health. They contain minerals like Potassium and Magnesium, which are essential for functions such as maintaining heart health and bone strength. Cucumbers also have Vitamin C, which can support immune function, and a high water content of 95.87g per 100g, aiding hydration.

Incorporating Cucumbers into Your Keto Meal Plan

  1. Cucumbers can be simply added to salads along with other keto-friendly vegetables, cheese, and a low-carb dressing. This is a quick and easy way to enjoy their refreshing taste while following a keto diet.
  2. For a unique spin, consider making cucumber boats. Hollow out cucumbers and fill them with a mix of cream cheese, herbs, and spices. A tasty snack that's low in carbs and high in flavor.
  3. Try incorporating cucumbers into a smoothie. Blend cucumbers with some spinach, avocado, and unsweetened almond milk for a refreshing and keto-friendly green smoothie.

Keto-Compatible Alternatives for Cucumbers

  1. Zucchini: Similar in texture and water content to cucumbers, zucchinis can be used as an alternative. They can be spiralized into noodles for a low-carb pasta dish or sliced and used in salads. Zucchinis have roughly 2.11g of net carbs per 100g, making them a comparably keto-friendly alternative.
  2. Celery: Another crunchy option, celery can be used in soups, stews, or as a snack with keto-friendly dips. With only 1.37g of net carbs per 100g, celery is also a great low-carb choice.
  3. Bell Peppers: Bell peppers can be used in a variety of dishes from stir-fries to stuffed peppers. They are slightly higher in carbs with 2.9g per 100g but still fit well within a ketogenic diet.

Concluding Thoughts on Cucumbers and Keto

Cucumbers have been highlighted as a keto-friendly vegetable due to their low net carb content of just 2.95g per 100g, making them suitable even for a strict ketogenic diet. The refreshing crunch of cucumbers not only adds texture to your meals but also provides essential nutrients like Potassium, Magnesium, and Vitamin C.

From incorporating cucumbers in salads and smoothies to making cucumber boats, there are numerous ways to include cucumbers in your keto meal plan. Always remember portion control and carb counting, even with low-carb foods.

Explore our Is It Keto Knowledge Hub.

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Cast Iron Keto's Editorial and Research Standards

Certain rare or exotic food items may not have nutritional profiles in the FoodData Central database. If an exact match is not found in the FoodData Central database, then, the Cast Iron Keto team utilizes a three-prong approach to provide readers with the closest relevant nutritional data, where possible.

First, in the event that nutritional profiles for a rare or exotic food item is not available in the FoodData Central database, we investigate alternative names for that particular food item and use that data, when possible. Second, in cases where no alternate names exist, Cast Iron Keto will use nutritional data for a close relative or similar food item. Finally, if no close relatives or similar items exist, we refrain from publishing nutrient data tables.

When making dietary or health decisions based on FoodData Central's data, we suggest readers consult with a nutritionist or other health experts, particularly if the food in question has a significant role in your diet or if you are using the food item to treat any health disorder(s).

Furthermore, it is important to note that even if a close relative or similar item is used to approximate the nutritional data, different food items can have varying levels of nutrients due to factors such as soil quality, farming practices, and regional differences.


The information on this website is only intended to be general summary information for public use, designed for educational purposes only and is not engaged in rendering medical advice or professional services. This information does not replace written law or regulations, nor does it replace professional medical advice, diagnosis, or treatment. If you have questions about a medical condition or are seeking to evaluate the health merits of certain food items for the treatment of any medical condition, you should seek the advice of a doctor or other qualified health professionals.

The views expressed at, or through, Cast Iron Keto are for informational purposes only. Cast Iron Keto cannot guarantee the validity of the information found here. While we use reasonable efforts to include accurate and up-to-date information, we make no warranties as to the accuracy of the content and assume no liability or responsibility for any errors or omissions in the content. All liability with respect to actions taken or not taken based on the contents of this website are hereby expressly disclaimed. The content on this posting is provided "as is;" no representations are made that the content is error-free.

Frequently Asked Questions

Yes, cucumbers can be included in a keto diet. They have a low net carb content of 2.95g per 100g, which fits within the carb limit of a ketogenic diet.

Most types of cucumbers, including English cucumbers and pickling cucumbers, are keto-friendly due to their low carb content. However, pickled cucumbers or gherkins may contain added sugars, so always check the label.