Discovering If Tomatoes Are Keto: A Comprehensive Guide

by | Jun 30, 2023

Keto Snacks: Homemade Recipes with Nutritional Insights

Are tomatoes keto? This is a question that many food enthusiasts and health-conscious individuals often ask.

While it’s common knowledge that the ketogenic diet emphasizes low-carb, high-fat foods, the classification of certain fruits and vegetables can sometimes be confusing.

The humble tomato, for instance, falls into this gray area due to its relatively higher carb content compared to other veggies.

We’ll delve deep into understanding why tomatoes are classified as a fruit and break down their nutritional value in terms of net carbs versus total carbs.

Stay tuned for some mouth-watering keto recipes, all featuring our star ingredient, tomatoes!

Are Tomatoes Keto? Let’s Find Out.

If you’re following the keto diet, you may have wondered if tomatoes are allowed. Good news for those following the keto diet – tomatoes are a low-sugar fruit that can be enjoyed.

While most fruits are off-limits due to their high sugar content, tomatoes are an exception. They are low in sugar and virtually fat-free, making them a great choice for even the strictest keto diets.

Now, you might be thinking, “Wait, aren’t tomatoes vegetables?” Well, surprise. Tomatoes are actually classified as fruits because they develop from the ovary of a flower and contain seeds.

What about the dietary facts of a standard-sized tomato? Let’s take a look:

Nutritional Breakdown of a Medium-Sized Tomato

A single medium-sized tomato is packed with nutrients and won’t tip your carb count overboard:

  • Only about 22 calories
  • 0 grams of fat
  • Around 5 grams of total carbohydrates
  • About 1 gram of dietary fiber
  • Nearly 4 grams of net carbs

Now, you might be wondering about the fruit vs vegetable debate. In culinary terms, we often refer to tomatoes as vegetables because they aren’t as sweet as other fruits like apples or oranges. 

However, scientifically speaking, any part of a plant that contains seeds is categorized as a fruit. So, yes, your favorite pizza topping is indeed fruity.

Don’t let labels scare you away from enjoying these deliciously healthy additions to your meals. Tomatoes can be a flavorful and nutritious part of your keto diet.

Why Eat Tomatoes – Nutrition Facts

When it comes to keto-friendly fruits, tomatoes are a true champion. They’re not just low in sugar, but they also pack a powerful nutritional punch.

The Power of Lycopene

Lycopene is the superstar antioxidant found in tomatoes that gives them their vibrant red color. 

This potent compound has been linked to numerous health benefits, including protection against UV ray damage and improved heart health.

You can learn more about lycopene’s incredible properties from this Healthline article.

Potassium, Vitamin C & Folate: The Triple Threats

Besides lycopene, tomatoes are rich in potassium, which supports nerve function and muscle contractions. 

They’re also high in vitamin C for immune support and folate, which aids cell growth and metabolism. 

Check out this comprehensive breakdown of the role these nutrients play in our bodies from Medical News Today.

Understanding Tomato’s Classification as a Fruit

Fruits or vegetables? That age-old debate surrounding tomatoes is finally settled. Technically speaking, they’re fruits due to their seed-bearing nature (shocking right?). 

But don’t let that deter you because, unlike most fruits with high sugar content, tomatoes only contain 1.3g net carbs per medium-sized tomato, making them perfect for your keto diet.

Nutritional Breakdown of a Medium-Sized Tomato

  • Total Carbs: 4 grams
  • Dietary Fiber: 1 gram
  • Sugar: 2 grams
  • Vitamin A: 20% DV
  • Vitamin C: 28% DV
  • Potassium: 10% DV
  • Folate: 6% DV

With such impressive nutrition facts packed into one humble fruit (or vegetable), it’s no wonder why we’re so obsessed with incorporating them into our keto recipes.

How to Incorporate Tomatoes into Your Keto Diet

When it comes to keto, tomatoes are like the Swiss Army knife of fruits.

You can manipulate them in various ways, from slicing to roasting or even blending them into a sauce.

The possibilities? are endless. The carb count? is minimal.

Cooking Techniques That Enhance the Flavor Profile of Tomatoes


A little olive oil and garlic can transform raw tomatoes into a savory delight that’s perfect for topping your keto chicken crust pizza.


Toss some cherry tomatoes in the oven with herbs and watch as they burst open, releasing their sweet juice – ideal for adding depth to any dish.

Ideas for Adding Tomatoes into Every Meal


Add diced tomatoes to your morning egg scramble or whip up an easy tomato salsa for extra flavor on your avocado toast – minus the bread, of course.


Looking for a satisfying keto-friendly meal? Try our tomato and zucchini casserole. Packed with veggies and low in carbs, this casserole is everything you want from a hearty dinner without breaking your ketosis stride.


Whoa, this one’s a surprise. Try roasting cherry tomatoes with vanilla extract and serving them over unsweetened Greek yogurt. It’s not traditional, but hey, we’re here to push boundaries.

Note to Self:

No matter how you slice it (pun intended), incorporating more tomatoes into your diet is a win-win situation. 

You get all those health benefits while keeping things tasty AND keto-friendly. So go ahead; let’s paint the town red…with deliciously ripe, juicy tomatoes.

Keto-Friendly Recipes Using Tomatoes

So, you’re a tomato lover and on a keto diet? Well, my friend, it’s time to rejoice because tomatoes are not just keto-friendly but also your culinary canvas for creativity.

Vegan Tomato Basil Pesto Tofu Scramble Recipe Details

Start Your Day with A Vegan Kick.

Let’s start the day off right with this vegan tofu scramble loaded with fresh basil pesto and juicy tomatoes.

It’s simple to make, packed full of flavor, and will keep you satisfied until lunchtime rolls around.

Keto Stuffed Tomatoes Recipe Details

Lunch Just Got Interesting.

No more boring lunches. These keto stuffed tomatoes are filled with provolone cheese and sausage, making them an absolute taste sensation. They’re easy to prepare ahead of time too, – perfect for those busy weekdays.

Easy Keto Tomato Soup Recipe Details

A Comforting Classic Redefined.

This isn’t your average canned soup – oh no. This is homemade keto tomato soup. It’s creamy, rich in flavor, and best served hot alongside some crispy bacon or melted cheese croutons (also keto.). Dinner sorted?

Zucchini Tomato Casserole Recipe Details

A Showstopper Side Dish.

And finally, if you’re looking for something that screams ‘gourmet’ without requiring hours in the kitchen, try this delectable zucchini and tomato casserole. It’s low in carbs, high in nutrients, and bursting with flavors from herbs & spices. 

Check out this helpful guide from EatingWell for instructions on making a delicious zucchini and tomato casserole. You can thank us later.

Pro Tip: Remember, while these recipes are designed to be keto-friendly, always check portion sizes. Even low-carb foods can kick you out of ketosis if eaten in excess.

So there we have it, folks – proof that being on a ketogenic diet doesn’t mean saying goodbye to delicious food options like our beloved tomatoes. Now go forth into your kitchens, armed with these recipes, & get cooking.

FAQs in Relation to Are Tomatoes Keto

Are tomatoes allowed on keto? Yes, tomatoes are permitted in moderation on a ketogenic diet due to their low sugar content.

How many tomatoes can I have on keto? You can consume around 1 cup of cherry tomatoes per day while following a keto diet.

What kind of tomatoes are keto? All types of fresh, raw tomatoes are suitable for a ketogenic lifestyle, including beefsteak and Roma varieties.

Are cherry tomatoes OK on keto? Cherry tomatoes, being low in carbs and high in fiber, are acceptable for consumption within limits during a Keto Diet.


While they do contain some natural sugars, tomatoes are still relatively low in carbs and packed with important nutrients like lycopene, potassium, vitamin C, and folate.

Looking for ways to incorporate tomatoes into your keto meals? Try roasting or grilling them to enhance their flavor profile, or tossing them into salads, omelettes, and keto-friendly tomato-based soups or casseroles. 

With these options, you’ll never get bored with including tomatoes in your ketogenic lifestyle.

Written By SEODave777

David Nilsson is the founder of The SEO Back Office and former SEO agency Converted Click. Passionate about people, search engines, faith, technology and boxing.

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