“Caprylic Acid?”Here!C8 fatty acid
Hasn’t appeared in a scanned product yet.
As a supplement
Talk to your doctor or pharmacist.
Roll Call does not check drug interactions or assess personal safety.
A medium-chain saturated fatty acid found naturally in coconut oil, palm kernel oil, and some dairy fat. In supplements it is sold on its own or as part of medium-chain triglyceride (MCT) blends.
Why it’s used
Taken to support gut and digestive health, sometimes marketed for antifungal or antimicrobial effects, and used as an energy source similar to other MCTs.
What the evidence says
Most evidence for antifungal or antimicrobial activity comes from laboratory and animal studies, not human trials. Human data on caprylic acid taken as a standalone supplement for any specific health outcome is sparse, so claims made for it outpace what has actually been tested in people.
Where we looked
There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.
- PubMed: 87 records · searched September 2026
"Caprylic Acid"[Title/Abstract] AND (review[pt] OR "safety assessment"[Title/Abstract] OR "risk assessment"[Title/Abstract] OR toxicology[Title/Abstract] OR toxicity[Title/Abstract] OR characterization[Title/Abstract] OR characterisation[Title/Abstract]) - PubMed: 6 records · searched September 2026
"Caprylic Acid"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH] - PubMed: 827 records · searched September 2026
"Caprylic Acid"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Where caprylic acid has been studied, it is usually as one component of a mixed MCT oil rather than in isolation, which makes it hard to attribute any effect specifically to caprylic acid itself.
Rumors
Caprylic acid kills Candida yeast and treats yeast infections.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- healthylife.com.au — we haven’t checked who runs this site yet
Caprylic acid supplements relieve digestive disorders like Crohn's disease, reducing pain, bloating, and bowel problems.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- healthylife.com.au — we haven’t checked who runs this site yet
Caprylic acid supplements cause stomach upset and diarrhea.
Supports — establishedhealth and safety evidence
Studied in: adults with mild to moderate Alzheimer's disease taking an MCT (caprylic acid-rich) supplement.
Measured as an outcome.
- Study of the ketogenic agent AC-1202 in mild to moderate Alzheimer's disease: a randomized, double-blind, placebo-controlled, multicenter trial (Peer-reviewed) · Funded by Accera, Inc. (industry) · Authors declare a conflict of interest
- Plasma Ketone and Medium Chain Fatty Acid Response in Humans Consuming Different Medium Chain Triglycerides During a Metabolic Study Day (Peer-reviewed) · Funded by NSERC (test MCTs provided by Abitec Corporation) (government) · Authors declare a conflict of interest
Who’s saying this
- draxe.com — we couldn’t open the site to see who runs it
Caprylic acid lowers high cholesterol.
Not gradedhealth and safety evidence
Sources cited — no verdict reached.
What was measured is not yet noted.
- Caprylic acid suppresses inflammation via TLR4/NF-κB signaling and improves atherosclerosis in ApoE-deficient mice (Peer-reviewed) · Funded by National Natural Science Fund of China (government) · No conflicts declared
Who’s saying this
- healthylife.com.au — we haven’t checked who runs this site yet
Caprylic acid rapidly raises blood ketones, giving the brain an alternative fuel.
Supports — establishedhealth and safety evidence
Measured as a biomarker.
- Tricaprylin Alone Increases Plasma Ketone Response More Than Coconut Oil or Other Medium-Chain Triglycerides: An Acute Crossover Study in Healthy Adults (Peer-reviewed) · Funding not checked
- Plasma Ketone and Medium Chain Fatty Acid Response in Humans Consuming Different Medium Chain Triglycerides During a Metabolic Study Day (Peer-reviewed) · Funded by NSERC (test MCTs provided by Abitec Corporation) (government) · Authors declare a conflict of interest
Who’s saying this
- draxe.com — we couldn’t open the site to see who runs it