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Is Sucralose Keto-Friendly?

Sucralose on a kitchen counter

If you've been asking 'Is Sucralose Keto-Friendly', the simple answer is no, due to its high carbohydrate content.

The ketogenic, or keto diet, is a low-carb, high-fat diet that requires careful tracking of carbohydrates, and unfortunately, Sucralose can't make the cut.


  • Is Sucralose Keto-Friendly? The simple answer is no.
  • Sucralose has high carbohydrate content, making it unsuitable for a strict keto diet.
  • Consuming Sucralose could potentially disrupt the metabolic state of ketosis, essential to the keto diet.

Is Sucralose Keto-Friendly?

Based on the nutritional data at hand, Sucralose is not considered keto-friendly. It contains a high amount of carbohydrates, specifically 91.17g per 100g, which is significantly above the recommended carb intake for a ketogenic diet.

This high carbohydrate content is primarily what makes Sucralose unsuitable for the keto diet. People following this lifestyle typically limit their carb intake to 20-50g per day to maintain a state of ketosis, where the body burns fat for fuel instead of carbohydrates. Consuming Sucralose, even in small amounts, can potentially disrupt this metabolic state due to its substantial carb content.

Can You Have Sucralose On a Strict Keto Diet?

Adhering to a strict keto diet means limiting daily carbohydrate intake to less than 20g. Given that Sucralose contains a high amount of carbohydrates, it doesn't align with the principles of a strict keto diet. Even a small 2g serving of Sucralose contains 1.82g of net carbs, which is a considerable portion of the daily carb limit in a strict keto diet.

Individuals following a more relaxed version of the keto diet, or a low carb diet, where they limit their carb intake to 30-50g of net carbs per day, may also find Sucralose challenging to incorporate. The hefty carb content of Sucralose can quickly add up and potentially disrupt ketosis, the state in which the body efficiently burns fat for energy.

Carbs In Sucralose

Sucralose, often used as a sugar alternative, carries a significant amount of carbohydrates. It has a carbohydrate content of 91.17g per 100g, which is considerably high, especially for those following a ketogenic diet.

Even in a small serving size of 2g, Sucralose contains 1.82g of net carbs. Net carbs are the total carbohydrates minus fiber and sugar alcohols, both of which are not digested by the body and do not raise blood sugar levels. Therefore, they are typically not counted in the daily carb allotment of a ketogenic diet. However, even considering this, the net carbs in Sucralose remain high.

Sucralose Nutrition Facts

Sucralose, often known under the brand name SPLENDA, is a popular tabletop sweetener. With a 100g serving, you'll find that it contains 336 kcal of energy, a substantial quantity of carbohydrates (91.17g), a hint of potassium (4.0mg), and a small amount of water (8.83g).

While it's known for its sweetness, Sucralose is notably low in essential nutrients, but it does contain some potassium. This micronutrient plays a role in maintaining fluid balance, nerve signals, and muscle contractions in the body.

The carbohydrate content is high but it's important to mention that these are not carbohydrates your body can absorb or digest. Despite this, Sucralose does contribute to your energy intake with 336 kcal per 100g.

Nutrient NameAmount and Unit per 100g
Carbohydrate, by difference 91.17g
Potassium, K 4.0mg
Calories 336.0kcal
Water 8.83g
This data was provided by the US Department of Agriculture's FoodData Central system.
'Sucralose' was not found in FoodData Central, so nutritional data for 'Sweeteners, tabletop, sucralose, SPLENDA packets' was used instead under Cast Iron Keto's editorial and research standards.

Health Implications of Sucralose on a Keto Diet

Including Sucralose in a ketogenic diet can pose challenges due to its high carbohydrate content. As the primary objective of a keto diet is to maintain a metabolic state of ketosis, where the body uses fat as a primary fuel source instead of carbs, the significant carb content of Sucralose could potentially disrupt this state.

As for its nutritional profile, Sucralose does provide some minerals, like potassium, which is beneficial for maintaining electrolyte balance and promoting proper nerve and muscle cell functioning. There's also a considerable amount of water in Sucralose, which is essential for hydration and various bodily processes.

Keto-Compatible Alternatives for Sucralose

  1. Stevia: As a natural, zero-calorie sweetener, stevia is an excellent alternative to Sucralose for those on a keto diet. It can be used in a variety of keto recipes, such as smoothies or baked goods, without adding any extra carbs.
  2. Erythritol: This sugar alcohol is another viable option. It has a glycemic index of zero, meaning it doesn't spike blood sugar levels. Erythritol can replace Sucralose in cooking and baking recipes, offering a similar level of sweetness without the carbs.
  3. Monk Fruit Sweetener: Like stevia, monk fruit sweetener is a natural product with zero calories and carbs, making it suitable for a keto diet. It provides a sweet taste in recipes like keto-friendly sauces or desserts, offering a good alternative to Sucralose.

Concluding Thoughts on Sucralose and Keto

Throughout our discussion, it's clear that Sucralose, due to its high carbohydrate content, is not a suitable choice for a ketogenic diet. While it does offer some nutritional benefits, like potassium and hydration due to its water content, these hardly outweigh the high carb presence that could affect blood sugar levels and disrupt the state of ketosis.

The key to maintaining a successful keto diet is in managing carb intake effectively. Therefore, it's advisable to explore other sweetener alternatives, such as stevia, erythritol, or monk fruit sweetener, which offer the sweetness of Sucralose without the high carb count.

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.

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Frequently Asked Questions

Unfortunately, no. Sucralose's high carbohydrate content makes it unsuitable for a ketogenic diet.