UC-II (Undenatured Collagen)
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UC-II (Undenatured Collagen). Type II collagen taken at low dose for immune-mediated joint tolerance.
How it works. Oral tolerance via gut-associated lymphoid tissue down-regulates collagen-targeted autoimmunity.
What the research supports. 1 graded claims. Strongest: Superior to glucosamine+chondroitin in head-to-head OA trial (moderate).
How much to take. Typical dose: 40 mg/d on empty stomach.
Side effects and interactions. 1 medication interaction listed. Serious: Discontinue and seek medical advice if symptoms are severe, persistent, or include difficulty breathing.
Stacking. Pairs well with A high-quality multivitamin, Omega-3 (EPA/DHA).
Forms. 1 forms. Pick one to open its profile.
Key studies. 8 studies cited. The strongest are listed with links to PubMed.
Community. Experiences from people who have tried UC-II (Undenatured Collagen). Anecdotes are not medical advice.
UC-II (Undenatured Collagen). Type II collagen taken at low dose for immune-mediated joint tolerance.
What it is
Type II collagen taken at low dose for immune-mediated joint tolerance.
Food sources
Goals
How it works
Oral tolerance via gut-associated lymphoid tissue down-regulates collagen-targeted autoimmunity.
Pathways
- Oral tolerance via gut-associated lymphoid tissue down-regulates collagen-targeted autoimmunity
Effects
- +Superior to glucosamine+chondroitin in head-to-head OA trial supports
What the research supports
Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.
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Side effects & interactions
Common side effects
- UC-II (Undenatured Collagen) is generally well-tolerated at evidence-based doses
- Mild GI discomfort (nausea, loose stools, or bloating) possible at higher intakes
- Headache or transient fatigue reported by a small fraction of users
Serious
- Discontinue and seek medical advice if symptoms are severe, persistent, or include difficulty breathing
Medication interactions
Always disclose UC-II (Undenatured Collagen) use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.
Check any supplement–medication combination with your pharmacist before starting.
Combines with
Pairs well
- A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
- Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.
Forms
Key studies
8 studies cited in total.
Opens current human and preclinical literature matching UC-II (Undenatured Collagen) and "Superior to glucosamine+chondroitin in head-to-head OA trial". Filter by RCT, meta-analysis, or year on the results page.
Opens current human and preclinical literature matching UC-II (Undenatured Collagen) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.
Opens current human and preclinical literature matching UC-II (Undenatured Collagen) and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.
Discussion
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