Zymosin (Chymosin) for Arthritis: No Evidence, Potential Risks

What Is Zymosin?

Zymosin, also known as chymosin, is a digestive enzyme found in the stomachs of young mammals that curdles milk. It has no established role in arthritis treatment.

Lack of Scientific Support

Despite anecdotal claims, no credible clinical trials or peer-reviewed studies demonstrate that zymosin alleviates arthritis symptoms. The National Institutes of Health (NIH) does not endorse its use and considers it ineffective and potentially harmful.

Potential Risks

• Unregulated product: Purity, dosage, and safety are not guaranteed.
• Delayed effective treatment: Relying on unproven remedies may allow joint damage to progress.
• Drug interactions: Unknown effects on prescribed arthritis medications.
• Allergic reactions: Possible hypersensitivity, especially in those with dairy allergies.

Evidence-Based Arthritis Management

1. Consult a rheumatologist or primary care provider for accurate diagnosis and tailored treatment.
2. Medications: NSAIDs, corticosteroids, DMARDs, biologics—selected by arthritis type.
3. Physical therapy & exercise: Improves joint mobility, strength, and pain control.
4. Complementary therapies (adjunctive): Heat/cold, massage, acupuncture, anti-inflammatory diets—used alongside, not instead of, standard care.

Always discuss any supplement with your healthcare team before starting.