“Macadamia Oil?”Here!macadamia nut oil
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.
An oil pressed from macadamia nuts, high in monounsaturated fatty acids, used in supplements as a fat source or carrier oil.
Why it’s used
Taken as a source of monounsaturated fat, sometimes marketed for skin, hair, or general cardiovascular wellness claims.
What the evidence says
Diets higher in monounsaturated fats generally, including from nut oils, have been studied for cardiovascular markers, but macadamia oil as an isolated supplement ingredient has not been separately tested in controlled human trials for these outcomes.
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: 4 records · searched September 2026
"Macadamia Oil"[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: 1 record · searched September 2026
"Macadamia Oil"[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: 40 records · searched September 2026
"Macadamia Oil"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Most relevant research examines whole macadamia nuts or general monounsaturated fat intake within a dietary pattern, not concentrated oil taken as a standalone supplement.
Rumors
Macadamia oil can cause allergic reactions in people with tree nut allergies.
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
- Medical News Today — a publisher: health information; trademark of Healthline Media, an RVO Health company
How we know who this is
- “The Medical News Today team is committed to bringing you accurate, trustworthy, and unbiased health information.” (their page)
- “Healthline Media is an RVO Health Company.” (their page)
- Medical News Today — a publisher: health information; trademark of Healthline Media, an RVO Health company
Macadamia oil lowers bad (LDL) cholesterol and reduces the risk of heart disease and stroke.
Not gradedhealth and safety evidence
Sources cited — no verdict reached.
What was measured is not yet noted.
- Macadamia nut effects on cardiometabolic risk factors: a randomised trial (Peer-reviewed) · Funded by Hort Innovation, Sydney, Australia (industry) · Authors declare a conflict of interest
- Macadamia Oil Supplementation Attenuates Inflammation and Adipocyte Hypertrophy in Obese Mice (Peer-reviewed) · Funded by FAPESP; CNPq (government) · No conflicts declared
Who’s saying this
- olivado.com — we couldn’t open the site to see who runs it
Macadamia oil is anti-inflammatory and reduces CRP (C-reactive protein).
Not gradedhealth and safety evidence
Sources cited — no verdict reached.
What was measured is not yet noted.
- Macadamia Oil Supplementation Attenuates Inflammation and Adipocyte Hypertrophy in Obese Mice (Peer-reviewed) · Funded by FAPESP; CNPq (government) · No conflicts declared
Who’s saying this
- House of Macadamias — a brand: sells macadamia nuts, oil, milk and nut products
How we know who this is
- “© 2026 House of Macadamias - Powered by Shopify” (their page)
- “Our unsweetened macadamia milk is just 1 ingredient: the healthiest nut, freshly harvested and hand-sorted from South African farms.” (their page)
Consuming macadamia oil supports heart health.
Does not supporthealth and safety evidence
Studied in: overweight and obese adults with abdominal obesity and elevated cardiometabolic risk.
Measured as a biomarker.
- Macadamia nut effects on cardiometabolic risk factors: a randomised trial (Peer-reviewed) · Funded by Hort Innovation, Sydney, Australia (industry) · Authors declare a conflict of interest
Who’s saying this
- Medical News Today — a publisher: health information; trademark of Healthline Media, an RVO Health company
How we know who this is
- “The Medical News Today team is committed to bringing you accurate, trustworthy, and unbiased health information.” (their page)
- “Healthline Media is an RVO Health Company.” (their page)
Macadamia oil helps with weight loss / fat loss.
Does not support — establishedhealth and safety evidence
Studied in: overweight/obese adults with abdominal obesity.
Measured as an outcome.
- Macadamia nut effects on cardiometabolic risk factors: a randomised trial (Peer-reviewed) · Funded by Hort Innovation, Sydney, Australia (industry) · Authors declare a conflict of interest
- Macadamia Oil Supplementation Attenuates Inflammation and Adipocyte Hypertrophy in Obese Mice (Peer-reviewed) · Funded by FAPESP; CNPq (government) · No conflicts declared
Who’s saying this
- House of Macadamias — a brand: sells macadamia nuts, oil, milk and nut products
How we know who this is
- “© 2026 House of Macadamias - Powered by Shopify” (their page)
- “Our unsweetened macadamia milk is just 1 ingredient: the healthiest nut, freshly harvested and hand-sorted from South African farms.” (their page)