Canola Oil
Also known as: rapeseed oil, Brassica napus oil, LEAR oil, low erucic acid rapeseed oil
Effective Dosage
No established dose from provided studies
What the Science Says
Canola oil is a vegetable oil derived from rapeseed, rich in monounsaturated (omega-9) and polyunsaturated (omega-3 and omega-6) fatty acids. In clinical trials, meals containing canola oil produced lower postprandial ghrelin levels compared to coconut oil, suggesting a modest hunger-suppressing hormonal effect. Some research in people with type 2 diabetes suggests canola oil may interact with genetic variants to influence cardiometabolic markers like HDL and triglycerides, though effects vary by individual genotype.
What It Doesn't Do
Not proven to cause meaningful weight loss on its own. No strong evidence it significantly improves heart disease outcomes as a supplement. Replacing other oils with canola oil did not meaningfully change liver or kidney function markers in metabolic syndrome patients. The anti-inflammatory effects seen in animal studies used canola as part of a multi-oil blend, not canola alone. Don't expect dramatic metabolic benefits from adding it to an otherwise poor diet.
Evidence-Based Benefits
Canola oil is a vegetable oil derived from rapeseed, rich in monounsaturated (omega-9) and polyunsaturated (omega-3 and omega-6) fatty acids. In clinical trials, meals containing canola oil produced lower postprandial ghrelin levels compared to coconut oil, suggesting a modest hunger-suppressing hormonal effect. Some research in people with type 2 diabetes suggests canola oil may interact with genetic variants to influence cardiometabolic markers like HDL and triglycerides, though effects vary by individual genotype.
Weak EvidenceEffective at: No established dose from provided studies
Source: auto-research
Absorption & Bioavailability
Good — fatty acids from canola oil are well absorbed postprandially, with oleic, linoleic, and alpha-linolenic acid appearing in blood within hours of consumption. It also aids absorption of fat-soluble vitamins like vitamin A.
Red Flags to Watch For
- Most provided studies used canola oil as a placebo or control arm, not as the active intervention — this limits conclusions about its specific benefits
- Postprandial triglyceride levels were actually higher after canola oil meals compared to coconut oil in one crossover trial, which may concern those with hypertriglyceridemia
- Several papers in this dataset are entirely unrelated to canola oil as a supplement (e.g., battery cooling, salmon feed, ketone ester trials), suggesting very limited dedicated human supplement research
- Effects on cardiometabolic markers may depend heavily on individual genetics (FADS1 gene variants), meaning results are not universal
- Deep-frying with canola oil for extended periods increases polar compounds and oxidation byproducts, which may pose food safety concerns
Products Containing Canola Oil
See how Canola Oil is used in these analyzed products:
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-09