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Are Grape Tomatoes Keto-Friendly?

Grape Tomatoes on a kitchen counter

Are Grape Tomatoes Keto-Friendly? That's the question we're going to answer in this article.

Spoiler alert: they are! But there's more to it than just a simple yes.

To truly understand why and how Grape Tomatoes fit into a ketogenic diet, we'll delve into the specifics, breaking down the carb content and nutritional benefits of this vibrant vegetable.


  • Yes, Grape Tomatoes are keto-friendly!
  • They are rich in essential vitamins, minerals, antioxidants, and fiber, contributing to overall health.
  • Explore the article further for a comprehensive breakdown of their nutritional value and tips on incorporating them into your keto meal plan.

Are Grape Tomatoes Keto-Friendly?

Grape Tomatoes are indeed keto-friendly. This is backed by nutritional data which reveals that Grape Tomatoes contain 3.41g of carbs per 100g.

This amount of carbs is considered low, which is why Grape Tomatoes are seen as compatible with the keto diet. Since the ketogenic diet is a low-carb diet, foods with lower carbs, like Grape Tomatoes, can be included. Furthermore, Grape Tomatoes have 3.41g of net carbs per 100g, a typical serving size. Considering the daily intake for those on a keto diet usually limits to about 20 to 50g of net carbs, adding Grape Tomatoes is certainly a way to enjoy variety in meals without significantly increasing carb intake.

Additionally, people generally consume Grape Tomatoes in moderate amounts, which makes it a more keto-friendly option. The quantity consumed plays a crucial role in determining whether a food is keto-friendly or not. It's about balance and understanding that while the food in question has carbs, it's the total daily carb intake that matters most for maintaining ketosis.

Can You Have Grape Tomatoes on a Strict Keto Diet?

Yes, Grape Tomatoes can fit into a strict ketogenic diet. A strict keto diet typically means keeping the daily carb intake under 20g. With Grape Tomatoes containing 3.41g of net carbs per 100g, it can be included in the diet and still stay within this limit.

That said, carb intake isn't the same for everyone adhering to a ketogenic lifestyle. Some people choose a more flexible approach to low-carb eating, limiting their daily net carb intake to between 30 to 50g. For those individuals, Grape Tomatoes can comfortably be included within their daily carb allowance as well.

However, no matter the specific carb limit adopted, tracking carb intake is crucial when following a ketogenic diet. There are several digital tools and apps available that make this task easier. Such tools can help monitor daily food consumption and ensure that the addition of foods like Grape Tomatoes doesn't disrupt the process of ketosis.

Carbs In Grape Tomatoes

Grape Tomatoes contain 3.41g of net carbs per 100g. This carb content is relatively low, making Grape Tomatoes a suitable option for those following a low-carb or ketogenic diet.

Additionally, Grape Tomatoes are considered to have a low glycemic index. The glycemic index is a system that ranks foods on a scale from 1 to 100 based on their effect on blood-sugar levels. Foods with a low glycemic index are digested and absorbed more slowly, leading to a slower rise in blood sugar levels. According to nutritional data, the glycemic load of Grape Tomatoes, which takes into account the serving size, is estimated to be low as well. This makes Grape Tomatoes a good option for maintaining steady blood sugar levels.

Grape Tomatoes Nutrition Facts

Grape tomatoes offer a bounty of nutrients in a tiny package. For a 100g portion, they provide a diverse range of both macro and micronutrients.

Starting with macronutrients, they contain 3.9g of carbohydrates, which includes 1.2g of dietary fiber and 2.6g of sugars. They have a negligible amount of fat (0.2g), and a moderate 0.9g of protein.

Delving into the micronutrients, grape tomatoes are rich in Vitamin C, offering 13.7mg per 100g, or about 23% of the daily recommended intake. They also contain a notable amount of Vitamin A, clocking in at 833IU for the same portion size. Grape tomatoes even provide a touch of calcium (10mg) and iron (0.3mg).

Key nutrients to highlight in grape tomatoes include lycopene, a type of antioxidant found in red fruits and vegetables. Lycopene is believed to have several health benefits, such as heart health and protection against certain types of cancers.

In terms of potassium, grape tomatoes hold 237mg per 100g. This vital mineral helps with nerve function and muscle contractions. Lastly, they also carry a small yet significant amount of folate (15µg), which is essential for cell growth and metabolism.

Nutrient NameAmount and Unit per 100g
Net Carbs 3.41g
Carbohydrate, by difference 5.51g
Fiber, total dietary 2.1g
Total fats 0.63g
Protein 0.83g
Sodium, Na 6.0mg
Potassium, K 260.0mg
Magnesium, Mg 11.9mg
Calcium, Ca 11.0mg
Vitamin B-6 0.06mg
Vitamin C, total ascorbic acid 27.2mg
Vitamin E (alpha-tocopherol) 0.98mg
Vitamin K1 4.2ug
Copper, Cu 0.06mg
Iron, Fe 0.33mg
Phosphorus, P 28.0mg
Zinc, Zn 0.2mg
Nitrogen 0.13g
Zeaxanthin 9.0ug
Lutein 95.0ug
Lycopene 4100.0ug
cis-beta-Carotene 49.0ug
cis-Lycopene 554.0ug
cis-Lutein/Zeaxanthin 12.0ug
Manganese, Mn 0.12mg
Thiamin 0.08mg
Riboflavin 0.06mg
Niacin 0.8mg
Folate, total 10.0ug
Choline, total 9.8mg
Calories 27.0kcal
Water 92.5g
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 Grape Tomatoes on a Keto Diet

Grape Tomatoes offer a wide array of essential nutrients. They are packed with vitamins such as Vitamin C, Vitamin E, and several B-vitamins. They also contain important minerals like potassium, magnesium, and iron. These vitamins and minerals support various bodily functions, including immune health, energy production, and heart health.

Additionally, Grape Tomatoes are rich in dietary fiber which aids digestion and contributes to a feeling of fullness, a useful feature for those on a keto diet. They also contain antioxidants such as lycopene, lutein, and zeaxanthin which contribute to overall health and wellbeing.

Incorporating Grape Tomatoes into Your Keto Meal Plan

  1. Enjoy Grape Tomatoes Raw: Grape Tomatoes can be a great addition to salads or as a snack on their own. It's a simple way to incorporate fresh produce into your meal plan.
  2. Use in Keto Recipes: Grape Tomatoes can be used in various keto-friendly recipes. They can be roasted for a side dish, used in a frittata for breakfast, or tossed into a stir-fry for dinner. The possibilities are endless.
  3. Portion Control is Key: As with any food on a ketogenic diet, it's important to remember portion control. Despite being low in carbs, the carbs in Grape Tomatoes can add up if consumed in large quantities. Always keep track of the amount you're eating to ensure it fits within your daily carb limit.
  4. Counting Carbs: Remember to count the carbs in Grape Tomatoes as part of your total daily intake. This will help you stay in ketosis and maintain your ketogenic lifestyle effectively.

Keto-Compatible Alternatives for Grape Tomatoes

  1. Bell Peppers: These colorful veggies are a great keto-friendly alternative to Grape Tomatoes. Bell peppers are low in carbs and can be used in a variety of recipes such as stuffed peppers or sliced into salads. They also provide a good source of vitamins A and C.
  2. Zucchini: Another low-carb vegetable, zucchini, can be used in place of Grape Tomatoes in many recipes. Zucchini can be spiralized for a pasta substitute, used in a stir-fry, or roasted as a side dish. They also have a high water content, making them a hydrating option.
  3. Cucumbers: Cucumbers have a lower carb count than Grape Tomatoes and can be used in similar ways. They work well in salads, as a snack with your favorite keto-friendly dip, or even pickled for a tangy treat.
  4. Radishes: Although a bit spicier than Grape Tomatoes, radishes offer a unique flavor and are very low in carbs. They can be roasted, used in salads, or even served as a crunchy snack.

Concluding Thoughts on Grape Tomatoes and Keto

Grape Tomatoes have proven to be a versatile and nutritious addition to a ketogenic diet. With a low net carb content, they can comfortably fit within the daily carb limits of a strict keto diet or a more flexible low-carb diet. Their nutritional profile adds value, offering several essential vitamins, minerals, and antioxidants, all of which contribute to overall health and wellbeing.

Portion control remains key, as the carbs in Grape Tomatoes can add up if consumed in large quantities. Counting these carbs as part of your total daily intake can help you maintain your ketogenic lifestyle effectively. There are numerous ways to incorporate Grape Tomatoes into your meals, from simple snacks and salads to complex recipes, offering a chance to experiment and diversify your 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

A single grape tomato contains approximately 0.6 grams of carbs, making it a low-carb option suitable for a ketogenic diet.

All tomatoes can be included in a keto diet, but the carb content may vary slightly based on the size and type of tomato. Grape Tomatoes are similar in carb content to cherry tomatoes but contain fewer carbs than larger varieties like beefsteak tomatoes.

Yes, as long as you maintain portion control. Despite being low in carbs, the carbs in Grape Tomatoes can add up if consumed in large quantities. It's key to count these carbs as part of your total daily intake.