Is Rapeseed Oil Bad for You? Cold-Pressed vs Refined

Walk down any cooking oil aisle and you’ll see rapeseed oil sitting next to olive oil, sunflower oil, and a dozen others. But a growing online debate has many people wondering whether that bottle of golden oil is actually healthy or something to avoid.

Saturated fat per 100g: 7g (low) ·
Omega-6 content per tbsp: ~2.5g ·
Omega-3 content per tbsp: ~1.3g ·
Smoke point (refined): 400°F (204°C)

Six key facts about rapeseed oil, from its origin to its typical uses:

Is rapeseed oil healthy?

What nutrients does rapeseed oil contain?

• Low in saturated fat — 7g per 100g, less than half the amount in olive oil (British Heart Foundation)
• Contains omega-3 (alpha-linolenic acid), omega-6 (linoleic acid), and omega-9 (oleic acid)
• Cold-pressed versions retain vitamin E and phytosterols (Yorkshire Rapeseed Oil)

Does rapeseed oil raise cholesterol?

The British Heart Foundation says rapeseed oil contains omega-3, omega-6, and omega-9 fats, which can help reduce cholesterol when used in place of saturated fats. The omega-6:omega-3 ratio is roughly 2:1, which is considered balanced among seed oils (WebMD).

Is rapeseed oil inflammatory?

Early research suggested high intakes of linoleic acid (an omega-6 fat) could increase inflammation, but more recent evidence does not support that conclusion. The British Heart Foundation states there is no strong or consistent proof that omega-6 fats directly cause inflammation in humans (British Heart Foundation). Stanford Medicine adds that omega-3s seem a little more anti-inflammatory than omega-6s, but omega-6s are not harmful (Stanford Medicine).

The implication: Rapeseed oil is a heart-healthy choice when used in moderation, especially if you choose cold-pressed versions that retain more nutrients. The anti-inflammatory claims against it are largely overblown by current evidence.

What is the unhealthiest oil to cook with?

What seed oil should I avoid?

• Highly processed seed oils (soybean, corn, sunflower) contain high omega-6 and are often made with chemical solvents (EUFIC)
• Partially hydrogenated oils (trans fats) are the worst for heart health
• Tropical oils (coconut, palm) are high in saturated fat, though their health effects are debated

What are the six seed oils to avoid?

Online wellness circles often list soybean, corn, canola (rapeseed), cottonseed, sunflower, and safflower oils as the “hateful eight” or “six to avoid.” However, the British Heart Foundation says current evidence does not show that these oils cause long-term inflammation when consumed as part of a balanced diet (British Heart Foundation).

Which oils are worst for heart health?

Cardiologists typically warn against partially hydrogenated oils (trans fats) and oils high in saturated fat when used in excess. Rapeseed oil is often considered a better choice when cold-pressed, because it is low in saturated fat and has a favorable fatty acid profile (British Heart Foundation).

The pattern: The worst oils are those that are hydrogenated (trans fats) or heavily refined with high heat and chemicals. Cold-pressed rapeseed oil does not belong in that category.

Why do people say seed oils are bad for you?

Are seed oils actually toxic?

No major health authority classifies seed oils as toxic. The British Heart Foundation says the idea that they cause inflammation is not supported by science (British Heart Foundation). EUFIC states that randomized controlled trials show adding linoleic acid to the diet does not increase inflammatory markers (EUFIC).

Is rapeseed oil ultra-processed?

Most supermarket rapeseed oil is refined using high heat and hexane, a chemical solvent. This qualifies as ultra-processed according to the NOVA classification. Cold-pressed rapeseed oil, on the other hand, is mechanically pressed without heat or chemicals, so it is not ultra-processed.

Is cold pressed rapeseed oil ultra-processed?

No. Cold-pressed rapeseed oil is made by mechanically pressing the seeds at low temperatures. It retains more antioxidants and flavor, and it meets the criteria for minimal processing (EUFIC).

The trade-off: The ultra-processing debate is real for refined rapeseed oil, but it does not apply to cold-pressed varieties. Consumers who want to avoid ultra-processed foods should look for “cold-pressed” or “extra virgin” on the label.

Is rapeseed oil ultra-processed?

What does ‘ultra-processed’ mean for cooking oils?

Ultra-processed foods are defined by the NOVA classification as industrial formulations made with techniques like hydrogenation, chemical extraction, and the addition of preservatives. Refined rapeseed oil uses hexane extraction and high-temperature deodorization, fitting the ultra-processed category.

How is refined rapeseed oil made?

• Seeds are crushed and heated to extract oil
• Hexane is used to dissolve remaining oil
• The oil is degummed, bleached, and deodorized at high temperatures
• This process removes natural antioxidants and flavor compounds

Is cold pressed rapeseed oil ultra-processed?

No. Cold-pressed rapeseed oil is produced by mechanically pressing the seeds without heat or chemical solvents. It retains more vitamin E, phytosterols, and flavor. The British Heart Foundation notes that cold-pressed rapeseed oil is a good source of omega-3 and has a healthier balance of fats than many other cooking oils (British Heart Foundation).

Why this matters: The processing level directly affects the oil’s antioxidant content and potential health benefits. Cold-pressed offers more than just a marketing label.

Is rapeseed oil healthier than olive oil?

Four oils, one question: which is better for your heart? Here’s how they compare across key nutritional markers.

Which oil do cardiologists recommend?

Many cardiologists recommend extra virgin olive oil as a first choice because of its high polyphenol content and strong evidence for heart health. However, the British Heart Foundation says rapeseed oil is also a good option, especially for high-heat cooking, because it has a higher smoke point and a favorable fatty acid profile (British Heart Foundation).

What are the top 3 healthiest oils?

• Extra virgin olive oil — high in polyphenols and monounsaturated fat
• Cold-pressed rapeseed oil — low saturated fat, balanced omega-3/6, good for cooking
• Avocado oil — high smoke point, monounsaturated fat

Rapeseed oil vs olive oil for cooking

For frying at high temperatures, refined rapeseed oil’s smoke point of 400°F makes it more stable than extra virgin olive oil. For salad dressings, extra virgin olive oil provides more flavor and antioxidants. Cold-pressed rapeseed oil can serve as a middle ground: it has a moderate smoke point and a nutty flavor suitable for both cooking and dressing.

For the average shopper in the US or UK, the choice between rapeseed oil and olive oil comes down to cooking method and budget. If you’re frying at high heat, cold-pressed rapeseed oil is a solid, heart-healthy option. If you’re dressing a salad, extra virgin olive oil offers more antioxidants. The real risk isn’t the oil itself — it’s the processed foods that contain cheap refined rapeseed oil. For the health-conscious cook, the decision is clear: buy cold-pressed rapeseed oil for cooking, and reserve extra virgin olive oil for finishing dishes.