1050 mg · gluten-free · 60 caps
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Cetyl myristoleate (CMO) is a cetylated fatty acid ester found naturally in the preputial glands of mice and in sperm whale oil. As a supplement, it is typically provided as a complex of multiple cetylated fatty acids (Celadrin) including cetyl myristoleate, cetyl myristate, cetyl palmitoleate, and cetyl laurate. It was discovered by Harry Diehl at the National Institutes of Health (NIH) while searching for a cure for his own arthritis.
CMO acts as a surfactant and lubricant for joints, reducing friction in the synovial membrane. It also modulates immune cell activity — particularly inhibiting pro-inflammatory cytokine production (TNF-α, IL-1β, IL-6) from activated monocytes and macrophages. Additionally, it enhances cell membrane fluidity and receptor responsiveness, improving chondrocyte function and cartilage repair signaling.
Individuals with osteoarthritis or rheumatoid arthritis seeking joint lubrication and inflammation reduction, those with joint stiffness and reduced range of motion, and people who have not responded adequately to glucosamine/chondroitin alone. Relevant for India's aging population with rising arthritis prevalence.
People with fish or seafood allergies (if marine-derived), those with severe fat malabsorption disorders, pregnant or breastfeeding women (limited safety data). Side effects: Very safe. CMO is a fatty acid complex with GRAS status. Rarely: mild stomach upset or fishy aftertaste if from marine sources. No known serious adverse effects.
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
Key citations: PMID 10584082 (Double-blind RCT in rheumatoid arthritis — 64 patients, 2000), PMID 11518709 (CMO inhibits pro-inflammatory cytokine production, 2001)
SacredBod's longer take on Cetyl Myristoleate CMO — context the structured blocks above don't capture.
Cetyl Myristoleate (CMO) is one of the most fascinating discoveries in joint health — a fatty acid compound found in mice that do not get arthritis, discovered by a NIH researcher searching for a cure for his own joint pain. When Harry Diehl injected CMO into rats with induced arthritis, their symptoms disappeared. The supplement world has been exploring its potential ever since.
A 2000 double-blind RCT (PMID 10584082) randomized 64 patients with rheumatoid arthritis to receive either CMO complex (Celadrin) or placebo for 30 days. The CMO group showed significant improvements in joint swelling, pain, and functional ability compared to placebo. While the study was small, the effect size was clinically meaningful for RA patients.
A 2001 in vitro study (PMID 11518709) demonstrated that CMO inhibits the production of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6) from activated human monocytes — confirming an immunomodulatory mechanism beyond simple lubrication. This explains why CMO benefits both osteoarthritis (wear-and-tear) and rheumatoid arthritis (autoimmune) patients.
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