Does Sparkling Water Break A Fast? [Intermittent Fasting FAQ]
Does sparkling water break a fast? Does flavored sparkling water break a fast? Can I drink sparkling water while fasting? Get your answers here!

Bubbly sparkling water is refreshing and a fun treat. There are so many brands of sparkling water now. Some are plain and unflavored and others contain flavoring and sugar.
If you enjoy sparkling water, also called carbonated water, you may be wondering if you can drink it while fasting. Keep reading to get all of your questions answered here!
Does Sparkling Water Break A Fast?
Unflavored, plain sparkling water will not break your fast. Sparkling water that contains flavoring will break your fast.
Does Sparkling Water Break A Fast – Further Details
Can you have sparkling water while fasting? Plain, unflavored sparkling water contains just water, carbon dioxide, and possibly some minerals. None of these ingredients will spike your insulin levels, making it a great choice to consume while fasting.
Does Flavored Sparkling Water Break A Fast?
Yes, any sparkling waters that contain flavoring or natural flavors will break your fast. It is important to read the ingredient labels and be mindful of what is in your sparkling water. Be sure to pick an option that contains just water, carbon dioxide, and minerals.
This article is all about will sparkling water break a fast.
What To Look For When Choosing A Sparkling Water During Your Fast
When picking a sparkling water to consume during your fasting window, here are some things to look for:
- Make sure it is free of artificial flavors and artificial sweeteners
- Check and confirm there are no natural flavors
- Look for sparkling water that has just water, carbon dioxide, and minerals
Benefits Of Consuming Sparkling Water While Fasting
Did you know that there are sparkling water benefits that you can see while fasting?
Some studies have shown that carbonated water improves satiety or the feeling of fullness. This is a great benefit while fasting!
Additionally, carbonated water has been shown to improve digestion and can help constipation. This may be helpful if you struggle to go to the bathroom while fasting.
This article is all about can you drink sparkling water while fasting.
Fasting-Friendly Sparkling Water Brands
Here are a few fasting-friendly sparkling water brands. As of the time of this writing, these brands are fasting-friendly. Always do your due diligence and confirm before consuming.
- Topo Chico
- Perrier Sparkling Water (Unflavored)
- Liquid Death Sparkling Water (Plain)
- Bubly Unflavored Sparkling Water
- Icelandic Glacial Sparkling Water Unflavored
Please note: There are many other fasting-friendly sparkling water brands. These are just a few of the options.
What Can I Consume While Fasting?
If you are following a clean fast, you can consume the following items when fasting:
- Water (unflavored, no added fruit)
- Black coffee
- Plain green tea or black tea
- Mineral water, unflavored sparkling water, seltzer water (with no added ingredients)
- Salt, electrolytes or minerals (unflavored, no additives)
- Medications as prescribed by your doctor

Additional Fasting Resources
Here are some other frequently asked fasting questions that may help you out!
- Can You Chew Gum While Fasting?
- What Are The Best Electrolytes For Fasting?
- Why Am I Not Losing Weight On OMAD?
- Do Energy Drinks Break A Fast?
- Does Diet Soda Break A Fast?
Frequently Asked Questions
Plain, unflavored sparkling mineral water will not break your fast.
Plain, unflavored carbonated water will not break your fast. This is a great fasting-friendly drink.
Plain, unflavored seltzer water will not break your fast. Unflavored seltzer water will not spike your insulin levels, making it a great choice for fasting.
Yes, La Croix will break your fast. Even their natural essence flavor contains a concentrated chemical that can spike your insulin levels. While we do not know exactly what is in the natural essence, it is best to avoid it while fasting.
Bottom Line
Now that you understand what types of sparkling water while fasting, you can fast on! What’s your favorite brand of sparkling water to consume while fasting?