Do Probiotics Break a Fast?

Do probiotics break a fast? Probiotic supplements don't disrupt fasting; verified by glucose monitoring, showing no blood sugar change post-probiotic intake.

Is it OK to Take Probiotic Supplements While Fasting?

Absolutely! Taking probiotics on an empty stomach during periods of fasting can be the best time to improve gut and overall health.

Do Prebiotics Break a Fast?

No, it will not affect weight loss or cause an insulin response, which would lessen then benefits of your fasting period.

Do Probiotics Stop Autophagy?

No, probiotic supplementation will not stop autophagy because it will not break your fast.

Best Probiotics

MegaSporeBiotic by Microbiome Labs

Great choice for endurance athletes or those who have battled brain fog and leaky gut.


RestoreFlora by Microbiome Labs

Great for those with candida or yeast overgrowth due to the yeast-eating saccharomyces boulardii.


Ther-Biotic Complete by SFI

The best option for those without major issues and looking to maintain optimal health.


Best Prebiotics

Ther-Biotic Biotagen by SFI

Blends 3 different prebiotics in one product to feed a variety of good-gut bugs.


Organic Inulin Powder by NOW Foods

Organic and made from agave.

If you’re looking to stretch a dollar but still keep a healthy gut microbiome, its hard to beat the Organic Inulin by NOW Foods.


What Supplements Will Break a Fast?

Fat-soluble vitamins like D, E, A, and K are best absorbed with food or healthy fats. It's advised to skip them during fasting.



Probiotics and prebiotics do not break a fast; including them in your fasting routine can improve gut health and support your immune system.