Neither canola oil nor olive oil is universally “better.” Each has genuine nutritional advantages depending on what you’re optimizing for. Canola oil edges out olive oil on cholesterol-lowering ability and omega-3 content, while extra virgin olive oil delivers a unique package of antioxidants and anti-inflammatory compounds that canola can’t match. The American Heart Association lists both as heart-healthy options.
Fat Profile: Where They Overlap and Diverge
Both oils are dominated by monounsaturated fat, the type most consistently linked to cardiovascular benefits. Olive oil contains about 69% monounsaturated fat, while canola oil comes in at roughly 61%. That’s a modest difference, and both numbers are high enough to qualify as “high-MUFA” oils.
The bigger gap shows up in two other categories. Canola oil has far less saturated fat: about 9% compared to olive oil’s 17.5%. And canola oil contains dramatically more omega-3 fatty acids, at 7 to 10% of its total fat versus less than 1% in olive oil. That omega-3 is alpha-linolenic acid (ALA), a plant-based form your body can partially convert into the longer-chain omega-3s found in fish. If you don’t eat much fatty fish, canola oil provides a meaningful bump to your omega-3 intake that olive oil simply doesn’t.
Canola oil also has a more favorable ratio of omega-6 to omega-3 fats, roughly 2:1, while olive oil’s ratio is closer to 13:1. A lower ratio is generally associated with less chronic inflammation, though the real-world significance of this ratio is still debated among nutrition researchers.
Cholesterol and Heart Disease Risk
A systematic review and meta-analysis of randomized controlled trials directly comparing the two oils found that canola oil reduced LDL (“bad”) cholesterol by about 6 mg/dL more than olive oil. Total cholesterol dropped an additional 9 mg/dL with canola oil, and the ratio of LDL to HDL cholesterol also improved. No significant differences appeared for HDL cholesterol or triglycerides.
Those numbers are not enormous for an individual, but they’re consistent and statistically significant across multiple trials. The likely explanation is canola oil’s lower saturated fat content and higher polyunsaturated fat, both of which are well-established drivers of LDL reduction. If your primary goal is lowering cholesterol through dietary changes, canola oil has a slight, measurable advantage.
Antioxidants and Inflammation
This is where extra virgin olive oil pulls ahead, and it’s not close. Extra virgin olive oil contains over 200 plant compounds, including polyphenols like oleuropein, hydroxytyrosol, and oleocanthal. These act as potent antioxidants and have documented anti-inflammatory effects. Oleocanthal, for instance, works through a similar pathway as ibuprofen.
In a trial involving patients with ulcerative colitis (an inflammatory bowel disease), extra virgin olive oil significantly reduced two key markers of inflammation: erythrocyte sedimentation rate and high-sensitivity C-reactive protein. Patients also reported improvements in bloating, constipation, and other digestive symptoms. Canola oil, used as the comparison, did not produce the same effects.
Canola oil is almost always highly refined, a process that strips away most of its natural antioxidants. Extra virgin olive oil, by contrast, is mechanically pressed without chemical solvents, preserving its polyphenol content. Regular (refined) olive oil loses much of this advantage too, so the distinction matters: it’s specifically extra virgin olive oil that delivers these compounds in meaningful amounts.
Both oils provide vitamin E, with canola offering slightly more per tablespoon (16% of daily needs versus 13% for olive oil). But vitamin E alone doesn’t compensate for the breadth of protective compounds in extra virgin olive oil.
How Each Oil Is Made
Most canola oil goes through an industrial extraction process. The seeds are crushed, then dissolved in a chemical solvent called hexane to pull out the oil. After that, the oil is refined through several steps: gums and free fatty acids are removed with water and organic acid, color is filtered out, and the oil is steam-distilled to remove odors. The result is a neutral-tasting, pale oil with a long shelf life but a reduced nutrient profile.
Cold-pressed canola oil does exist and retains more of its original nutrients, but it’s far less common on store shelves. Extra virgin olive oil, on the other hand, is produced by mechanically crushing olives without heat or chemical solvents. This gentler process is why it keeps its distinctive flavor and its antioxidant load intact.
Cooking and Heat Tolerance
Refined canola oil has a smoke point between 400 and 475°F, making it well-suited for deep frying, stir-frying, and high-heat roasting. Extra virgin olive oil’s smoke point ranges from 325 to 410°F, which is lower but still high enough for most home cooking, including sautéing and oven roasting at standard temperatures.
Canola oil’s neutral flavor makes it a better choice when you don’t want the oil to influence the taste of your dish, like in baking or lightly flavored stir-fries. Extra virgin olive oil adds a peppery, fruity note that works well in salad dressings, pasta, vegetables, and Mediterranean-style cooking. For finishing dishes or dipping bread, extra virgin olive oil is the clear pick, since you’re using it specifically for flavor and getting its antioxidants undiminished by heat.
Which Oil to Use When
The practical answer for most people is to keep both in your kitchen. Use extra virgin olive oil as your default for medium-heat cooking, dressings, and finishing, where its polyphenols and anti-inflammatory properties can do the most good. Use canola oil for high-heat frying, baking, and recipes where a neutral flavor matters.
If you’re choosing just one, extra virgin olive oil offers the more complete health package. Its antioxidant and anti-inflammatory benefits are unique and well-supported, and it handles everyday cooking temperatures fine. If your budget is tight or you’re managing high cholesterol specifically, canola oil is a solid, affordable choice that the American Heart Association endorses alongside olive and soybean oil as part of a heart-healthy diet.
One thing to avoid: assuming all olive oil is extra virgin. Regular (refined) olive oil has lost most of the polyphenols that make extra virgin special. At that point, you’re getting an oil with a fat profile similar to, but slightly less favorable than, canola oil, at a higher price. If you’re buying olive oil for health reasons, check the label for “extra virgin” and look for a harvest date to ensure freshness.