Best Cooking Oils for Low Inflammation (Ranked)

Walk down any supermarket oil aisle and you will find dozens of options, many with health claims on the label. "Heart healthy." "Rich in natural goodness." "Source of omega-3." What the label rarely tells you is the omega-6 content — the single most important factor when choosing an oil for inflammation management.

This guide ranks common cooking oils by their omega-6 content per tablespoon (USDA FoodData Central data), discusses their smoke points for practical cooking decisions, and gives a clear recommendation for each use case.

How We Ranked These Oils

Rankings are based on linoleic acid (omega-6) content per tablespoon, sourced from USDA FoodData Central. We also include:

• Smoke point — the temperature at which an oil begins to break down and smoke, producing harmful compounds
• Primary fatty acid type — saturated (most stable), monounsaturated (stable), or polyunsaturated (least stable at heat)
• Additional considerations — polyphenol content, processing method, and practical flavour notes

The Best Oils for Low Inflammation

1. Extra Virgin Olive Oil — 0.8g omega-6/tbsp ★★★★★

Extra virgin olive oil is the gold standard for anti-inflammatory cooking. USDA data places its linoleic acid content at approximately 0.8g per tablespoon — versus 8.9g in sunflower oil. This is more than a 10× difference in omega-6 per tablespoon.

Beyond its favourable fatty acid profile (primarily oleic acid, a monounsaturated fat), EVOO contains significant quantities of polyphenols — plant compounds with independent anti-inflammatory properties. Key polyphenols in EVOO include oleocanthal (which inhibits COX enzymes in a similar manner to ibuprofen, as established by Beauchamp et al., 2005), hydroxytyrosol, and oleuropein.

Smoke point: 190–207°C (higher-quality, lower-acidity EVOO has a higher smoke point) Best for: Sautéing, roasting at moderate temperatures, salad dressings, finishing dishes Practical note: The "EVOO can't be used for cooking" myth is false. Most home cooking occurs below 180°C, well within EVOO's smoke point range.

2. Avocado Oil — 1.2g omega-6/tbsp ★★★★★

Avocado oil has a very similar fatty acid profile to olive oil — primarily oleic acid — with a slightly higher omega-6 content but the major advantage of a very high smoke point. It is extracted from avocado fruit flesh (like olive oil, not a seed oil), giving it comparable stability.

Smoke point: ~270°C (refined), ~190°C (unrefined/extra virgin) Best for: High-heat frying, searing, grilling, wok cooking Practical note: Refined avocado oil has a neutral flavour and is versatile for high-heat applications. Unrefined avocado oil has a subtle buttery flavour.

3. Coconut Oil — 0.2g omega-6/tbsp ★★★★

Coconut oil is unusual among plant oils in being predominantly saturated fat (~87% saturated). This makes it chemically very stable at heat — saturated fats do not oxidise like polyunsaturated fats. Its omega-6 content is negligible.

The saturated fat composition of coconut oil raises its own questions: it is predominantly lauric acid, a medium-chain saturated fat with a different metabolic fate than long-chain saturated fats. Its effect on cardiovascular markers is more nuanced than headlines suggest — it raises both LDL and HDL cholesterol.

Smoke point: 177°C (unrefined), ~232°C (refined) Best for: Medium-heat cooking, Asian dishes, baking where coconut flavour is welcome Practical note: Unrefined coconut oil has a distinct flavour. Refined coconut oil is more neutral.

4. Butter — 0.4g omega-6/tbsp ★★★★

Butter contains very little omega-6 and is primarily composed of saturated and monounsaturated fats. It also contains fat-soluble vitamins A, D, E, and K2 (particularly from grass-fed cows), butyrate (a short-chain fatty acid that acts as fuel for colon cells), and the anti-inflammatory compound conjugated linoleic acid (CLA).

Smoke point: ~150°C (unsalted), burns relatively quickly at high heat Best for: Low to medium heat cooking, sautéing vegetables, finishing sauces, baking Practical note: Grass-fed butter (Kerrygold, etc.) has a notably better omega-6:omega-3 ratio than conventionally farmed butter.

5. Ghee (Clarified Butter) — 0.4g omega-6/tbsp ★★★★★

Ghee is butter with the milk solids and water removed through gentle heating. The result is a pure butterfat with a substantially higher smoke point than regular butter, and the same beneficial fatty acid profile. It is also lactose-free, making it suitable for those with dairy sensitivities.

Smoke point: ~250°C Best for: High-heat sautéing, Indian cooking, roasting, searing Practical note: Ghee has a rich, nutty flavour and a long shelf life without refrigeration. Excellent all-purpose cooking fat when you want a non-olive flavour profile.

Oils to Limit or Avoid

Sunflower Oil — 8.9g omega-6/tbsp ✗✗✗✗✗

The highest omega-6 oil in common use. One tablespoon has more omega-6 than most people should consume from this source in an entire week. Avoid as a cooking oil; check labels on any product using it.

Exception: High-oleic sunflower oil has a very different profile (~3g omega-6/tbsp, high in oleic acid). Unfortunately it is rarely labelled clearly — standard supermarket "sunflower oil" is almost always the high-linoleic variety.

Corn Oil — 7.3g omega-6/tbsp ✗✗✗✗

Common in the United States, particularly for frying. No meaningful omega-3 content. Very high omega-6. No advantages over better alternatives.

Soybean / Vegetable Oil — 7.0g omega-6/tbsp ✗✗✗✗

The most consumed oil globally, primarily due to its dominance in processed food manufacturing. The "vegetable oil" label obscures that it is almost always primarily soybean oil. Avoid when possible.

Canola / Rapeseed Oil — 2.9g omega-6/tbsp ✗✗

Lower omega-6 than the above, and it does contain some omega-3 (ALA) — roughly a 2:1 omega-6:omega-3 ratio in raw form. However, the ALA omega-3 is poorly converted to EPA/DHA in the body, and cold-pressed rapeseed oil (which retains more beneficial compounds) is different from the highly refined canola oil in supermarkets. Better than sunflower oil, but inferior to olive oil for inflammation management.

The Bottom Line

For 90% of home cooking applications, extra virgin olive oil is the correct choice — it has the lowest omega-6 of any widely available cooking oil, is stable enough for everyday cooking temperatures, and provides independent anti-inflammatory polyphenols. Buy it in bulk from a reputable source to reduce cost per use.

For very high-heat applications (searing, wok cooking, deep frying at home), use refined avocado oil or ghee.

If you are currently cooking with sunflower or vegetable oil, the single switch to extra virgin olive oil will have more impact on your omega-6:omega-3 ratio than almost any other dietary change you can make.