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Are Bell Peppers Keto-Friendly?

Bell Peppers on a kitchen counter

Are Bell Peppers Keto-Friendly? The simple answer is yes.

Bell peppers, with their low net carb content and impressive nutritional profile, are indeed a great fit for a keto diet.

In this article, we delve into the details, breaking down the net carbs in bell peppers and how they can be enjoyed as part of your keto meal plan.

We'll look at the health implications of including bell peppers in a keto diet, suggest ways to incorporate them into your meals, and even provide keto-compatible alternatives.

We will also highlight the overall benefits and nutritional value of bell peppers.

So, if you're contemplating adding bell peppers to your keto diet, keep reading.


  • Yes, bell peppers are keto-friendly, with a low net carb content.
  • Bell peppers are rich in essential vitamins and minerals, contributing to a balanced and healthy diet.
  • Discover tasty ways to incorporate bell peppers into your keto meal plan in this comprehensive guide.

Are Bell Peppers Keto-Friendly?

Bell peppers are indeed keto-friendly. They contain 3.93g of carbs per 100g, a ratio that fits comfortably within the dietary restrictions of the ketogenic lifestyle. Nutritional data further reveals that bell peppers pack a considerable nutritional punch, contributing to their status as a keto-friendly vegetable.

Diving deeper into the nutritional aspects, the 3.93g of carbs present in bell peppers are known as 'net carbs.' This term refers to the total carbs minus the fiber content, which is the form of carbohydrate that can be digested and thus impacts ketosis. In a typical serving size of 100g, bell peppers contain 3.93g net carbs, which is relatively low compared to other vegetables. This is a critical point for those following a keto diet, as the daily carb intake is generally limited to 20-50g.

Can You Have Bell Peppers on a Strict Keto Diet?

Yes, you can absolutely include bell peppers in a strict ketogenic diet. Given the low net carb content of 3.93g per 100g serving size, bell peppers easily fit within the parameters of a strict keto diet, which is defined by an intake of less than 20g of net carbs per day.

In addition, bell peppers can also comfortably fit into a more relaxed low-carb diet where the daily net carb intake is limited to between 30 and 50g. The versatility of bell peppers, combined with their low carb content, makes them a valuable addition to various diet plans.

Carbs In Bell Peppers

Bell peppers contain 3.93g of net carbs per 100g. This value of net carbs is calculated by subtracting the fiber content from the total carbohydrates. In terms of glycemic index, bell peppers are considered low. The glycemic index is a measure that ranks foods based on how much they raise blood glucose levels. Foods with a low glycemic index, like bell peppers, are digested and absorbed at a slower rate, leading to a slower and lower rise in blood glucose levels.

Bell Peppers Nutrition Facts

A 100g serving of bell peppers is packed with nutrition. Firstly, it's low in calories, with just 20 kcal. Carbohydrates weigh in at 4.64g, with sugars at 2.4g, proving it's a low-sugar food. The dietary fiber content is 1.7g, aiding in digestion.

As for proteins, it provides 0.86g per 100g serving. Though not a significant source of proteins, it contributes to the overall protein intake. The total fat content is as low as 0.17g, making it a low-fat food.

Bell peppers shine in their vitamin content. They provide an impressive 80.4mg of Vitamin C, which is more than 97% of the daily value. Vitamin A is abundant with 370 IU. Other vitamins include B6, K1, E, and folate.

Nutrient NameAmount and Unit per 100g
Net Carbs 3.93g
Carbohydrate, by difference 6.03g
Fiber, total dietary 2.1g
Total fats 0.3g
Protein 0.99g
Sodium, Na 4.0mg
Potassium, K 211.0mg
Magnesium, Mg 12.0mg
Calcium, Ca 7.0mg
Vitamin A 157.0ug
Vitamin B-6 0.29mg
Vitamin C, total ascorbic acid 127.7mg
Vitamin E (alpha-tocopherol) 1.58mg
Vitamin K1 4.9ug
Copper, Cu 0.02mg
Iron, Fe 0.43mg
Phosphorus, P 26.0mg
Selenium, Se 0.1ug
Zinc, Zn 0.25mg
Beta-carotene 1624.0ug
Cryptoxanthin, beta 490.0ug
Lutein + zeaxanthin 51.0ug
Betaine 0.1mg
Manganese, Mn 0.11mg
Thiamin 0.05mg
Riboflavin 0.08mg
Niacin 0.98mg
Pantothenic acid 0.32mg
Folate, total 46.0ug
Choline, total 5.6mg
Calories 26.0kcal
Water 92.21g
Tryptophan 0.01g
Threonine 0.04g
Isoleucine 0.02g
Leucine 0.04g
Lysine 0.04g
Methionine 0.01g
Cystine 0.02g
Phenylalanine 0.05g
Tyrosine 0.01g
Valine 0.03g
Arginine 0.04g
Histidine 0.02g
Alanine 0.03g
Aspartic acid 0.28g
Glutamic acid 0.21g
Glycine 0.03g
Proline 0.02g
Serine 0.05g
Fatty acids, total saturated 0.06g
Fatty acids, total monounsaturated 0.01g
Fatty acids, total polyunsaturated 0.16g
This data was provided by the US Department of Agriculture's FoodData Central system.
'Bell Peppers' was not found in FoodData Central, so nutritional data for 'Peppers, sweet, red, raw' was used instead under Cast Iron Keto's editorial and research standards.

Health Implications of Bell Peppers on a Keto Diet

Bell peppers are a rich source of essential nutrients, boasting an impressive array of vitamins and minerals. Notably, they contain high amounts of Vitamin C, Vitamin A, Vitamin B-6, and fiber, all of which contribute to a balanced and healthy diet. Additionally, bell peppers have trace amounts of healthy fats and low sodium content, making them a great choice for those following a keto diet.

Incorporating Bell Peppers into Your Keto Meal Plan

  1. Bell peppers can be a versatile addition to a keto meal plan. They can be sliced and used in salads or chopped and added to omelets. Their mild, sweet flavor and crunchy texture make them a great component in a variety of dishes.
  2. There are numerous keto recipe ideas that incorporate bell peppers. They can be stuffed with a mixture of ground meat and cheese, roasted and served with a keto-friendly dip, or stir-fried with other low-carb veggies and a protein of choice.
  3. Portion control is crucial when including bell peppers in your keto meal plan. While they are low in net carbs, consuming them in large quantities can still affect your daily carb limit. Monitoring the amount of bell peppers in your meals will help you stay within your carb limit.

Keto-Compatible Alternatives for Bell Peppers

  1. Zucchini is a great keto-friendly alternative to bell peppers. It can be used in a variety of dishes, from stir-fries to zucchini noodles, known as 'zoodles.' Zucchini has a net carb content of 2.11g per 100g, slightly lower than bell peppers.
  2. Another excellent substitute is spinach. With only 1.43g of net carbs per 100g, spinach can be added to salads, sautéed as a side dish, or used in casseroles. Much like bell peppers, spinach also boasts high amounts of vitamins and minerals.
  3. Broccoli, with a net carb content of 4.04g per 100g, can also replace bell peppers in many dishes. It can be roasted, steamed, or even riced to serve as a low-carb side. Much like bell peppers, broccoli carries a substantial nutritional profile including fiber, vitamins C, K, and A, and potassium.

Concluding Thoughts on Bell Peppers and Keto

Bell peppers are a fantastic addition to a ketogenic diet due to their low net carb content, making them compatible with both strict and more relaxed low-carb plans. With a net carb content of just 3.93g per 100g serving, they can easily fit within daily carb limits.

Rich in essential vitamins and minerals like Vitamin C, Vitamin A, Vitamin B-6 and fiber, bell peppers not only provide nutritional benefits but also add color and flavor to a variety of keto-friendly dishes. Their versatility allows them to be incorporated easily into the diet in various forms, from salads and omelets to stuffed peppers and stir-fries.

While portion control and carb tracking are important to ensure that bell peppers fit within the daily carb limit, their overall nutritional profile makes them a great choice for those following a keto diet.

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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, regardless of their color, all bell peppers have a similar net carb content and are keto-friendly.

No, bell peppers are low in net carbohydrates, making them suitable for a keto diet.