Does Mushroom Coffee Break A Fast?

Mushroom coffee typically contains minimal calories and can be consumed without significantly disrupting the fasting state. However, it is essential to check the specific ingredients of the mushroom coffee product you are consuming to ensure it does not contain any additives or sweeteners that could break a fast. Mushroom coffee mug surrounded by fresh mushrooms in peaceful forest.

But First, What Exactly Breaks A Fast?

Breaking a fast, fundamentally, involves consuming anything that triggers the body’s metabolic processes or affects insulin and blood sugar levels. The most common culprits include food and drinks with calories from carbohydrates, and proteins (The American journal of clinical nutrition, 2015). Even small amounts can stimulate your digestion system and negate the benefits of fasting – like cell regeneration, improved gut health, mental clarity – as your body switches from rest-and-repair mode to digesting-and-processing mode. Sticking strictly to water during your fasting period is a secure way to ensure you’re not breaking your fast inadvertently. However, many people find this quite restrictive and opt for modified versions of fasting where low-calorie beverages are permissible. In these cases, it all boils down to personal goals and what one’s body can tolerate without triggering an insulin response since each individual’s tolerance varies. It’s crucial to pinpoint that adding caloric additives such as milk or sugar into any beverage would definitely break a fast due to their effects on blood sugar levels and insulin production!

Benefits Of Mushroom Coffee For Fasting

While there are some established benefits of mushrooms and coffee on their own, the specific health benefits of mushroom coffee are not yet fully understood, according to Cleveland Clinic. However, here are some possible benefits of mushroom coffee for fasting reported by various nutritionists. For starters, the combined effects of regular coffee and medicinal mushrooms work to boost energy levels without triggering unwanted jitters commonly associated with high caffeine intake. This is especially important when fasting, as you need your energy stable throughout the day. On top of that, consumption of mushroom coffee promotes mental clarity and cognitive function – something crucial for those focused days between meals. Aiding in gut health is another wonderful payoff from sipping on this beverage during fasts due to its potent adaptogenic properties. Notably, different kinds of functional mushrooms, like lion’s mane or reishi, are used which offer unique benefits such as immune support and stress level regulation respectively. All these nutrients come packed with negligible net carbs or proteins; hence there’s little to no impact on blood sugar levels or insulin response – an essential aspect while maintaining a fasting state. However, remember not to add any milk or sugar into your cuppa because that would surely break your fast! For more information about consuming regular coffee during fasting, have a look at my “Does Coffee Break A Fast?” article. a person sipping mushroom coffee from a thermos amidst a lush forest When it comes to popular mushroom coffee brands and fasting, it’s important to consider their ingredients and nutritional content. Brands like MUD/WTR, Ryze, and Four Sigmatic offer mushroom coffee options that are specifically designed to be low in calories and free from additives like milk and sugar. However, it’s still crucial to check the nutrient labels and serving sizes to ensure they align with your fasting goals and guidelines. Here I will mention three popular brands, but you can find more in my best mushroom coffee roundup.


MUD/WTR, a popular brand of mushroom coffee, contains 4g of carbohydrates and 20 total calories per serving, making it a flavorful but caloric option that may break a fast. While it’s considered keto-friendly due to its low carbohydrate content, the caloric value of MUD/WTR suggests that it may not be suitable for maintaining a fasting state. This blend combines functional mushrooms with other ingredients like cacao, cinnamon, and turmeric, offering a unique flavor profile. The presence of these additional ingredients may contribute to the higher carbohydrate and calorie content. You’re welcome to read my full MUD WTR review if you’re curious about this product.

2. Ryze

Ryze is a noteworthy mushroom coffee brand that fasting enthusiasts will appreciate. With only 15 total calories per serving, Ryze mushroom coffee falls within the range of low-calorie beverages that are unlikely to break a fast. While the calorie content is minimal enough to not significantly affect insulin levels or blood sugar during your fasting period, it’s always smart to consider any additives you may put in. Keep it clean, no milk or sugar! Ryze mushroom coffee contains 1g of net carbs, with 0.5g being dietary fiber, making it a low-carb option that will not significantly impact blood sugar levels or trigger insulin production. Feel free to check out my Ryze mushroom coffee review for more details.

3. Four Sigmatic

I’ve been using Four Sigmatic mushroom coffee during my fasting periods, and I’m happy to report that it doesn’t seem to break my fasts. One serving of their mushroom coffee contains zero calories, no carbs, and no protein, meaning it will not break a fast.

Mushroom Coffee And Intermittent Fasting

I’ve been asked a lot about whether mushroom coffee is compatible with intermittent fasting, and I’m here to give you the lowdown. During intermittent fasting, it’s important to keep carbohydrate and protein intake under 1 gram outside your eating window. While there are no studies providing a specific number, “<1g rule” is suggested by many certified nutritionists. The good news is that mushroom coffee contains very minimal amounts of carbs and proteins. This means that you can still enjoy the benefits of mushroom coffee without breaking your fast. So if you’re practicing intermittent fasting and looking for a delicious alternative to black coffee during your fasting period, incorporating mushroom coffee into your routine could be worth considering. Just remember to opt for brands that don’t include caloric additives, such as Four Sigmatic, or make your own using a mushroom extract.

Does Mushroom Extract Break A Fast?

I was curious to know whether mushroom extract breaks a fast, so I did some research. It turns out that the answer depends on the specific type of mushroom extract and how it’s consumed during fasting. Mushroom extracts typically come in liquid or powder form and can be added to drinks or taken as supplements. If you’re using a pure mushroom extract without any caloric additives, it is generally low in calories and carbohydrates, making it suitable for most fasting plans. However, if your fasting protocol strictly prohibits anything other than water, then consuming mushroom extract may break your fast since it does contain some calories. But if you’re following an intermittent fasting plan that allows for low-calorie beverages during your fasting period, including mushroom extract should not significantly impact your insulin levels and hinder the benefits of fasting.

Will Drinking Flavored Coffee Impact My Fasting Period?

Numerous individuals ponder, does flavored coffee break a fast? Despite seeming innocuous, flavored coffee might affect your fasting window. This is because flavored coffees frequently have extra sugars, synthetic sweeteners, or creamers added, each capable of triggering insulin release and interrupting your fast. To keep your fasting efforts successful, it’s advisable to adhere to regular black coffee.

Can Drinking Mushroom Coffee During a Fast Still Allow Me to Maintain the Benefits of Fasting?

Drinking mushroom coffee during a fast may not break the fast, but does LaCroix break a fast? The answer lies in the zero-calorie nature of LaCroix. While some argue that the artificial flavors and carbonation might trigger an insulin response, there is no definitive evidence to support this claim. Ultimately, the benefits of fasting could still be maintained when consuming LaCroix, but it’s essential to listen to your body’s response and consult a healthcare professional if needed.

Does Mushroom Tea Break A Fast?

Mushroom tea, like mushroom coffee, contains a few calories and therefore may technically break a strict fast that only allows water. However, if you’re following a fasting plan that permits low-calorie beverages, mushroom tea could be an acceptable option. Similar to mushroom coffee, it is typically low in calories and doesn’t significantly raise insulin levels. Plus, mushroom tea can provide the same health benefits associated with mushrooms, such as enhanced focus and immune support. Like with any fasting protocol, it’s essential to consider your specific goals and guidelines when deciding whether or not to include mushroom tea during your fasting period. steaming cup of mushroom tea on a wooden table
Rich Ross

Rich is a divorced father of two. He holds a Master of Public Health degree in Nutrition from the University of North Carolina’s Gillings School of Global Public Health. A former chemist, Richard has been offering private coaching sessions for more than 7 years. His mission is to help people live happier, healthier lives by showing them that they have power to choose what they eat and how they feel about themselves.