@doctorsbestvitamins: I took a gut test and found out I was low in Butyrate with markers for something called “leaky gut.” I turned to Doctor's Best PepZin GI and High Absorption Postbiotic Butyrate with branded ingredients to help get me back on track. Now I’m looking forward to my next test to see if I ace it! Have you ever heard of “leaky gut?” *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.