A specialized enzyme that cleaves plant cell wall cellulose to release bound nutrients and reduce digestive gas.
What it is
Cellulase is an enzyme complex comprising endo-1,4-beta-glucanase, exo-1,4-beta-glucanase, and beta-glucosidase that catalyzes the hydrolysis of structural cellulose into soluble glucose oligomers. Humans do not endogenously synthesize or secrete cellulase. In dietary formulations, cellulase is manufactured via controlled fungal fermentation (typically from Trichoderma reesei or Aspergillus niger) to assist human digestion in degrading tough, fibrous plant cell wall matrixes during gastric and duodenal transit.
Also known as: Digestive Cellulase
What it does
- Hydrolyzes beta-1,4-glycosidic bonds in plant cell wall cellulose into shorter carbohydrate chains.
- Frees trapped phytonutrients, vitamins, and minerals locked within fibrous plant matrixes.
- Reduces intestinal gas, bloating, and fermentation distress caused by undigested plant fibers.
Amplified by probiotics
Because human pancreatic secretions lack cellulase, plant cell wall polysaccharides often shield valuable micronutrients from upper intestinal absorption. Exogenous cellulase hydrolyzes structural plant cellulose, exposing bound polyphenols, trace minerals, and fermentable fibers. Microencapsulated probiotics delivered into the distal intestine directly ferment these liberated carbohydrate substrates. The short-chain fatty acids (SCFAs, particularly acetate and butyrate) generated through probiotic fermentation lower colonic pH, which significantly enhances paracellular mineral transport and reinforces the gut epithelial barrier. Furthermore, cellulase activity prevents excessive, gas-producing macro-fermentation in the ileum, maintaining gut microbial equilibrium and preventing abdominal bloating.
Typical dose
100–1,000 CU/day
The evidence
Evidence: moderateClinical and ex vivo digestive studies confirm that supplemental cellulase hydrolyzes dietary insoluble plant fiber, enhancing nutrient bioaccessibility and reducing abdominal flatulence when combined with multi-enzyme complexes (Roxas 2008, Altern Med Rev; Quinten et al. 2008, J Agric Food Chem).
Safety & who should check first
Extremely safe with high oral tolerability; non-systemic enzyme that acts exclusively within the gastrointestinal lumen. No known toxicities or major drug interactions at standard supplemental doses.