You’ve embarked on your intermittent fasting journey, and you’re sipping on your morning herbal tea or coffee. The question bubbles up: does stevia break a fast?

In most cases, consuming stevia doesn’t break a traditional fast as it has zero calories. However, its effect on blood glucose and insulin response varies among individuals.
In this article, we’ll dive deep into the world of stevia: a natural sweetener that’s been grabbing attention. Together, we’ll explore whether stevia can be a friend or foe during your intermittent fasting window, the nuances of its impact on our blood glucose levels, and how other sugar substitutes measure up against it.
🪄 A Detailed Explanation: Stevia and Fasting
What is stevia?
Stevia is derived from the leaves of the Stevia rebaudiana plant, which originates from South America. Unlike table sugar or sucrose, stevia boasts of being a natural sweetener with very few calories. But its primary attraction isn’t just its sweet taste; it’s the promise of satisfying our sweet tooth without the associated calorie intake.
Stevia and Blood Glucose Levels
The primary concern during fasting revolves around anything that might spike our blood glucose or insulin levels. Introducing glucose into the bloodstream can indeed break a fast, but does stevia break a fast? The compounds in stevia, called steviol glycosides, provide its sweetness. Most studies suggest that pure stevia doesn’t have a significant effect on blood glucose or insulin levels, making it a favorable option for many during their fasting period. However, remember, everyone’s body reacts differently, and for some, even the slightest amount of any sweetener can induce an insulin response.
Stevia Vs. Artificial Sweeteners and Sugar Alcohols
When it comes to sugar substitutes, the market is awash with options. From artificial sweeteners like acesulfame potassium to natural alternatives like monk fruit, and non-nutritive sweetener like aspartame, there’s a plethora to choose from. So, how does stevia stack up against these?
Firstly, stevia is a natural sweetener, whereas many others are manufactured. This means stevia doesn’t contain the chemicals found in artificial sweeteners. On the other hand, sugar alcohols (like xylitol or sorbitol) are a different kind of beast. They can affect blood glucose levels to some extent, as the body partially absorbs them. It’s also worth noting that some stevia products might be blended with sugar alcohols, so always read labels carefully!
Here’s everything else you should know about stevia, its potential health benefits, and other crucial insights for those watching their sugar intake or focusing on metabolic health.

⚖️ Is consuming stevia beneficial for weight loss?
Starting on the path to weight loss often means making some dietary adjustments. Many people look to replace regular sugars and sweeteners with zero-calorie or low-calorie alternatives, like stevia. Given that stevia has very few calories and doesn’t majorly influence blood sugar levels, it seems like a great choice when you want to lose weight, right?
Yes, in many ways, it is! By swapping out regular sugar or high-calorie sweeteners with stevia, you’re effectively reducing your calorie intake. But here’s the catch: taste matters! For some, stevia might have a slightly different aftertaste. So while it’s a calorie-wise choice, always ensure that it’s also a palate-pleasing one for you.
💙 How does stevia affect gut health?
Ah, the gut microbiome! A vital player in our overall body health. There’s increasing evidence suggesting that the health of our digestive system, especially our gut bacteria, influences everything from weight gain to our immune system.
Natural stevia, as it comes from the stevia plant, has minimal effects on our gut health. However, some commercial stevia products, which might be blended with sugar alcohols, could potentially affect the digestive tract. Sugar alcohols are known to sometimes cause digestive discomfort in sensitive individuals. So, if you have conditions like small intestine bacterial overgrowth (SIBO) or are generally sensitive, it’s wise to approach with caution.

🟰 Are all stevia products made equal?
Navigating the world of sweeteners is a bit like shopping for jeans – not all cuts and brands will fit you the same way! Similarly, not all stevia products are created equal.
The purest form of stevia is the liquid stevia extract, which is derived directly from the stevia plant (the stevia leaves, specifically). This is typically free of additives and is closest to the natural source. However, many stevia products in the market are mixed with other ingredients, like sugar alcohols or even other sugars, to enhance the sweet taste or improve its texture. I, for one, bought what I thought was stevia online (that’s what the label said!) but when I read the ingredients it was mostly erythritol which can give digestive issues.
It’s essential to be label-savvy. Checking the ingredients can provide insights into what you’re consuming. If you’re fasting or monitoring your blood glucose levels, aim for products labeled as ‘pure stevia’ or ‘purified stevia extracts’ to be on the safer side.
🍯 How does stevia compare to other natural sweeteners?
The sweet world of natural sweeteners! As you might know, stevia isn’t the only natural sugar substitute vying for your attention. There’s monk fruit, honey, agave nectar, and others that might pique your interest. So, how does our star player, stevia, fare against these?
Monk fruit, like stevia, is a zero-calorie sweetener and is derived from the monk fruit plant. It’s been used in traditional Chinese medicine for centuries. When it comes to the fasting effect, monk fruit acts much like stevia, not influencing blood glucose levels significantly. Honey and agave, while natural, do contain sugars and will inevitably influence blood sugar. So if you’re watching those levels or sticking to a strict fast, they might not be your best bet.
Another factor to consider is taste. While stevia might have a particular aftertaste to some, monk fruit is often described as having a fruity sweetness. Honey, with its rich, viscous nature, brings more than sweetness – it brings flavor. Depending on your taste preferences, one might appeal more than the others. A note on monk fruit: I’ve discovered that, like stevia, it is often mixed with erythritol so it’s best to check the label! It’s also illegal in Europe.

❤️ Does stevia play a role in insulin sensitivity and metabolic health?
The crux of many health discussions these days revolves around metabolic health and insulin resistance. For the uninitiated, insulin sensitivity refers to how responsive your body is to insulin’s effects. Good insulin sensitivity is beneficial for maintaining healthy blood sugar levels.
Stevia, interestingly, might play a role here. Some studies suggest that stevia can have beneficial effects on glucose metabolism. These studies indicate that stevia might help improve insulin sensitivity, although the exact mechanisms aren’t fully understood. It’s essential to note that while stevia can be a tool in your metabolic health toolkit, it shouldn’t be the only one. A balanced diet, regular exercise, and managing stress play pivotal roles in ensuring our metabolic health remains top-notch.
☕ Can you use stevia during any fasting window?
Intermittent fasting has various patterns: for example, the 16/8 method (my preferred, fast for 16 hours, eat within 8), alternate-day fasting, the 5:2 diet (consuming 500 calories two days per week), or the eat-stop-eat method (two 24-hour fasts per week). Given these different windows, a common question is whether stevia can be introduced in any of them without breaking the fast.
The general consensus is that, because stevia doesn’t spike blood sugar or insulin levels significantly, it can be used during any fasting window. Whether you’re on a 16-hour fast or in between meals on a 5:2 diet day, a drop of liquid stevia in your morning coffee or herbal tea is generally considered acceptable. However, always remember to listen to your body. Everyone’s body is unique, and while stevia might be a non-issue for many during fasting, others might be more sensitive. Always start small, observe how you feel, and adjust as necessary.

💭 Final Thoughts
Navigating the world of sweeteners while you’re on your health journey can feel a bit like finding your way through a maze, right? But thanks to this deep dive, you’re now equipped with knowledge about stevia, how it stands amidst other sweeteners, and its potential impacts on fasting and metabolic health. Remember, the choice of whether to use stevia during your fasting window boils down to personal preference and how your body reacts.
Personally, I don’t consume stevia when I’m in a fasted state while intermittent fasting, and I didn’t during my 21-Day Water Fast either. For drinks, while fasting, I enjoy black coffee, black tea, or green tea in the morning, and then I’ll add a splash of oat milk to coffee or tea around noon, right before I work out. This is just what works for me – YMMV.
Embrace your journey, and take every step with confidence. Whether you’re sipping a drink sweetened with stevia or trying out another natural sweetener, it’s all part of the learning experience. Keep listening to your body, and you’ll find what works best for you. Here’s to healthier choices and a sweeter tomorrow!
❓ Frequently Asked Questions
While stevia is generally considered safe, consuming it in large amounts might cause digestive discomfort for some people.
Yes, major health organizations, including the FDA (Food and Drug Administration), have recognized the general safety of high-purity stevia extracts for consumption.
Absolutely! Stevia can be used as a sugar substitute in cooking and baking, but it’s essential to check conversion charts as it’s much sweeter than regular sugar.
Some people do detect a slight licorice or metallic aftertaste with stevia, but this can vary based on individual taste buds and the specific stevia product used.
Yes, stevia is available in various forms, including liquid drops, powders, and granulated forms, with some products being a blend of stevia and other sweeteners or sugar alcohols.
While both stevia and some diet sodas offer low or zero-calorie sweetness, diet sodas often use artificial sweeteners, while stevia is a natural sweetener. Always check the label to know what you’re consuming.

😋 Recipes with stevia you will love
- Almond Flour Cupcakes
- Sugar-Free Cranberry Sauce with Stevia
- Keto Chia Pudding
- Raw Vegan Cheesecake
- Paleo Chocolate Chip Cookies
Did you enjoy this post? We’d love to know <3 Tag us (@makehealthyrecipes) on Facebook and Instagram, Pin it on Pinterest, and please leave a star rating review below! Don’t forget to subscribe to the email list (top right of this page) for sparkly new recipes in your inbox.