Cellulase

Specialized digestive enzyme that breaks down cellulose and plant fiber to enhance nutrient absorption and reduce digestive discomfort

Scientific nameCellulose-degrading enzyme complex FormulaMultiple enzyme proteins (EC 3.2.1.4) Molecular weightVariable (20-80 kDa) g/mol CAS9012-54-8

80 absorption score

9 safety / 10

25 USD per month

5 documented interactions

Check it against something

No documented links

Cellulase with:

70 out of 100

No known interaction No documented interaction. Standard timing for each applies.

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What it does

mechanism and evidence for each claim

Enhanced plant fiber digestion

Breaks down cellulose and plant cell walls for better nutrient access

Hydrolyzes β-1,4-glycosidic bonds in cellulose fibers Evidence B-grade 30-120 minutes during plant food consumption

Reduced gas and bloating from fiber

Prevents excessive gas production from undigested plant fibers

Complete fiber breakdown reduces bacterial fermentation Evidence B-grade 2-6 hours post-meal

Improved nutrient extraction from vegetables

Better access to vitamins, minerals, and phytonutrients in plant cells

Breaking cell walls releases bound nutrients Evidence B-grade 1-4 hours

Enhanced tolerance of high-fiber foods

Enables comfortable consumption of beans, vegetables, and whole grains

Reduces digestive stress from complex plant fibers Evidence C-grade During and after fiber-rich meals

Support for plant-based diets

Optimizes nutrition absorption for vegetarian and vegan diets

Maximizes bioavailability of plant-based nutrients Evidence C-grade Ongoing with regular use

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Probiotics for Autoimmune Disease Support Gut health & immune modulation 10-100 billion CFU daily B 60% Ashwagandha Stress management & energy 300-600mg A 75% Magnesium Glycinate Superior absorption sleep & muscle support 200-600 mg A 90% Vitamin B12 (Cyanocobalamin) Energy & nerve support 250-1000 mcg A 70% Coenzyme Q10 (CoQ10) Heart health & cellular energy 100-200mg A 10% Magnesium Citrate Balanced absorption & digestive support 300-600 mg A 35%

Every pair we checked

12 combinations scored by the engine

Cellulase + Caffeine No documented interaction either way No known interaction 70

Cellulase + Creatine Monohydrate No documented interaction either way No known interaction 70

Cellulase + Vitamin D3 No documented interaction either way No known interaction 70

Cellulase + Calcium Carbonate No documented interaction either way No known interaction 70

Cellulase + Whey Protein No documented interaction either way No known interaction 70

Cellulase + Lactase No documented interaction either way No known interaction 70

Cellulase + Bovine Collagen No documented interaction either way No known interaction 70

Cellulase + DHA No documented interaction either way No known interaction 70

Cellulase + Turmeric No documented interaction either way No known interaction 70

Cellulase + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70

Cellulase + Magnesium Oxide No documented interaction either way No known interaction 70

Cellulase + Alpha-GPC Reduced gas from beans and legumes Works better together 82

Dosage

With fiber rich meals

Daily500-2,000 CU with meals

Fiber digestion support500-1,000 CU with meals

High fiber diet support1,000-2,000 CU with fiber-rich meals

Vegetable sensitivity300-800 CU with problematic vegetables

MaximumGenerally safe up to 3,000 CU per meal

When to expect it

First Effects30-120 minutes during fiber-rich meals

Peak Benefits2-4 weeks for improved fiber tolerance and plant nutrition

Deficiency DevelopmentHumans naturally lack significant cellulase production

Toxicity OnsetRare - generally very safe enzyme

How to measure it

$80-120

MarkerDigestive function assessment, nutrient absorption markers

OptimalImproved tolerance of fiber-rich foods

Deficient belowNot applicable - humans naturally lack cellulase

FrequencyBaseline assessment if digestive issues persist

What actually reaches you

The label counts the carrier, your body does not

Absorption Very high 80 of 100 · best absorbed form of this compound

Delivered daily 1000 mg

Cost per 100 mg delivered $0.08 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented

Hemicellulase

Complete plant cell wall breakdown

Complementary enzymes for comprehensive plant fiber digestion · level B

Pectinase

Enhanced fruit and vegetable digestion

Breaks down pectin in plant cell walls · level B

Alpha Galactosidase

Reduced gas from beans and legumes

Breaks down oligosaccharides that cause gas · level A

What not to take with Cellulase

2 documented

Excessive Processing

May reduce beneficial fiber effects on microbiome

Over-digestion of fiber reduces prebiotic benefits · mild significance

Tannins

Tannins may inhibit cellulase activity

Tannins can bind to enzymes reducing effectiveness · minimal significance

Medication interactions

Discuss these with a pharmacist before combining

fiber-supplements Minor

May alter fiber supplement effects

What to do: Monitor for changes in fiber benefits

cholesterol-medications Minor

May affect soluble fiber cholesterol benefits

What to do: Monitor cholesterol levels

diabetes-medications Minor

May affect fiber's blood sugar benefits

What to do: Monitor blood glucose patterns

Available forms

bioavailability compared

Fungal Cellulase (Trichoderma reesei) 80

Fungal Cellulase (Trichoderma reesei): Effective fiber breakdown, Reduces gas from vegetables, Safe for long-term use, Vegetarian source

Food sources

before you supplement

Human digestive system Minimal natural cellulase production · 20

Fungal cellulase supplements Concentrated enzyme activity (CU units) · 80

Raw foods with natural enzymes Some natural cellulase activity · 40

Fermented plant foods Bacterial cellulase from fermentation · 50

Too little

deficiency signs

Humans naturally produce minimal cellulase:
Gas and bloating from high-fiber foods
Poor tolerance of vegetables, beans, and whole grains
Undigested plant material in stool
Digestive discomfort from raw vegetables
Difficulty adapting to high-fiber or plant-based diets
Suboptimal nutrient extraction from plant foods

Too much

toxicity signs

Generally very safe but potential considerations:
Temporary digestive changes with initial use
Possible reduction in prebiotic fiber benefits
Rare allergic reactions to fungal sources
No significant toxicity reported

Who benefits most

high-fiber-diet-consumers

Reduces gas and bloating from fiber-rich foods

500-1,500 CU with fiber-containing meals

vegetarians-vegans

Optimizes nutrition absorption from plant-based diets

1,000-2,000 CU with vegetable and grain meals

digestive-sensitivity-to-vegetables

Enables comfortable consumption of vegetables and legumes

500-1,000 CU with problematic plant foods

transitioning-to-plant-diets

Supports adaptation to increased fiber intake

500-1,500 CU with meals during transition

nutrient-optimization-seekers

Maximizes phytonutrient extraction from plant foods

500-1,000 CU with antioxidant-rich vegetables

Where to buy it

compare forms first

Look for Cellulase at 500-2,000 CU with meals per serving. The form that matters here is Fungal Cellulase (Trichoderma reesei).

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What else affects it

Beyond other supplements

Excessive processing

May reduce beneficial fiber effects on microbiome

Over-digestion of fiber reduces prebiotic benefits

Tannins

Tannins may inhibit cellulase activity

Tannins can bind to enzymes reducing effectiveness

How it works

Hydrolyzes β-1,4-glycosidic bonds in cellulose chains
Breaks down plant cell walls to release bound nutrients
Works synergistically with hemicellulase and pectinase
Converts insoluble cellulose into smaller, more digestible fragments
Reduces particle size of plant fibers for easier processing
Enables access to intracellular nutrients in plant foods

Key findings

what the evidence supports

Effective for reducing gas and bloating from high-fiber foods
May enhance nutrient extraction from plant foods
Generally safe for long-term use
Limited human studies but promising preliminary evidence

Sources: NIH Examine.com · data reviewed 2026-08-01

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Cellulase?

Documented effects: Enhanced plant fiber digestion; Reduced gas and bloating from fiber; Improved nutrient extraction from vegetables; Enhanced tolerance of high-fiber foods. Breaks down cellulose and plant cell walls for better nutrient access

How much Cellulase should you take per day?

The common daily range is 500-2,000 CU with meals. By goal — fiber digestion support: 500-1,000 CU with meals; high fiber diet support: 1,000-2,000 CU with fiber-rich meals; vegetable sensitivity: 300-800 CU with problematic vegetables; maximum: Generally safe up to 3,000 CU per meal.

When is the best time to take Cellulase?

With fiber rich meals. First effects are typically reported within 30-120 minutes during fiber-rich meals.

What are the side effects of Cellulase?

At excessive doses: Generally very safe but potential considerations:, Temporary digestive changes with initial use, Possible reduction in prebiotic fiber benefits, Rare allergic reactions to fungal sources, No significant toxicity reported. Safety rating at normal doses is 9 out of 10.

What should you not take with Cellulase?

Separate it from Excessive Processing, Tannins by two to four hours. May reduce beneficial fiber effects on microbiome

Does Cellulase interact with medications?

Documented interactions with fiber-supplements, cholesterol-medications, diabetes-medications. Discuss these with a pharmacist before combining.

How do you know if you need Cellulase?

The marker is Digestive function assessment, nutrient absorption markers, optimal range Improved tolerance of fiber-rich foods. Common deficiency signs: Humans naturally produce minimal cellulase:, Gas and bloating from high-fiber foods, Poor tolerance of vegetables, beans, and whole grains, Undigested plant material in stool.

Taken for

62 Energy & Metabolism

Vitamin B12 (Methylcobalamin) · Ashwagandha · Vitamin B12 (Cyanocobalamin)

74 Digestion

Lactase · Lactobacillus acidophilus · Protease