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877 products scored223 ingredients explainedNo paid placement

Ingredient library

Neutral · Digestive enzyme

Fermentation extracts (enzymes)

Also appears on labels as: dried aspergillus niger fermentation extract, dried aspergillus oryzae fermentation extract, dried trichoderma longibrachiatum fermentation extract, enzymes, dried rhizopus oryzae fermentation product

Enzymes produced by food-grade molds and yeasts, then extracted. The organism is filtered out; the enzyme is what is added.

Watched ingredients get highlighted on every product panel you open.

Where it comes from
Industrial fermentation, the same process behind most food-industry enzymes.
Why it's in the product
Break down starch, fiber, and protein to improve digestibility.
Safety and toxicity
Safe. Aspergillus on a label alarms people who associate the genus with aflatoxin, but the food-grade production strains used here are non-toxigenic and the extract is not the mold.

General reference, not veterinary advice. Dose, breed, and existing conditions change the answer, so talk to your vet before changing what your pet eats. Think we got this wrong? Tell us and we log it publicly.

Found in 21 scored products

Lowest scores first. Its presence here is not what drove those scores.

Panel Score 83 out of 100, grade B: Good, check the flags
Next LevelPerformance Plus Large Breed Adult
Panel Score 83 out of 100, grade B: Good, check the flags
Next LevelHi-Pro Professional
Panel Score 83 out of 100, grade B: Good, check the flags
Next LevelHero’s Saluteimported, not reviewed
Panel Score 86 out of 100, grade B: Good, check the flags
InstinctRaw Boost Grain-Free Chicken
Panel Score 86 out of 100, grade B: Good, check the flags
Blue BuffaloTrue Solutions Weight Control Chicken & Oatmeal Recipeimported, not reviewed
Panel Score 86 out of 100, grade B: Good, check the flags
I and Love and YouNude Super Food Surf 'N Chick Recipeimported, not reviewed
Panel Score 86 out of 100, grade B: Good, check the flags
NutriSourceDry Dog Food Chicken & Rice Recipe For Large Breed Dogsimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Next LevelNormally Active Healthy Weight Adult
Panel Score 87 out of 100, grade B: Good, check the flags
DinoviteDinovite for Dogs
Panel Score 87 out of 100, grade B: Good, check the flags
Pet HonestyGut + Immune Health Digestive Probiotic Chews (Duck Flavor)
Panel Score 90 out of 100, grade A: Pretty good
Blue BuffaloBasics Salmon & Potato Recipe (Skin & Stomach Care) For Adult Dogsimported, not reviewed
Panel Score 90 out of 100, grade A: Pretty good
Blue BuffaloFreedom Indoor Mature Recipe With Chicken and Potatoesimported, not reviewed
Panel Score 90 out of 100, grade A: Pretty good
Blue BuffaloTastefuls Chicken & Brown Rice Recipe (Hairball Control) For Adult Catsimported, not reviewed
Panel Score 90 out of 100, grade A: Pretty good
CanidaePure Real Wild Boar & Garbanzo Bean Recipe For Adult Dogsimported, not reviewed
Panel Score 90 out of 100, grade A: Pretty good
CanidaeLife Stages All Life Stages Formulaimported, not reviewed
Panel Score 90 out of 100, grade A: Pretty good
CanidaePure With Wholesome Grains Real Duck & Brown Rice Recipeimported, not reviewed
Panel Score 91 out of 100, grade A: Pretty good
Eagle PackNatural Dog Food Large & Giant Breed Adult Dogsimported, not reviewed
Panel Score 94 out of 100, grade A: Pretty good
Only Natural PetComplete Gut Health Probiotics & Digestive Enzymes for Dogs & Cats
Panel Score 94 out of 100, grade A: Pretty good
HaloSensitive Stomach Daily Prebiotic & Digestive Supportimported, not reviewed
Panel Score 94 out of 100, grade A: Pretty good
Health ExtensionCrunchy Treats With Buffalo For Large Dogsimported, not reviewed
Panel Score 96 out of 100, grade A: Pretty good
Nature's LogicCanine Beef Meal Feast