Both our Digestive Food Enzyme Capsules and Ultra Digestive Food Enzyme Capsules contain diastase, an enzyme or group of enzymes that play a part in the breakdown of carbohydrates. Our diastase is derived from a fungus called Aspergillus. It is perfectly safe and a common practice to use fungi in enzyme production and while this enzyme is sourced from fungus, fungus is not in the final product. 


It is worth noting that these organisms are considered GRAS (generally recognized as safe) by the FDA. And, due to an enormous size difference between Aspergillus and enzymes, they can easily be separated through a series of microfiltrations. There is nothing that even remotely resembles fungus in MaryRuth’s final product.


If you are concerned about the presence of gluten, please know that we also test our final products for the presence of gluten. The FDA considers less than 20 ppm to be safe and allows the use of the claim “gluten free” if within this minimum. MaryRuth’s standards are more stringent, with our final products passing a test if it contains less than 5 ppm — far below the FDA minimum. 


Ultimately, we’d recommend that you check with your doctor or healthcare professional to determine if the diastase present in our enzymes are safe for your specific dietary restrictions.