Flaxseed oil is keto-friendly at 0g net carbs and rich in ALA omega-3s—best for cold uses like dressings and finishing. Avoid heating due to low heat stability.
Is Flaxseed Oil Keto?

Flaxseed oil is keto-friendly at 0g net carbs and rich in ALA omega-3s—best for cold uses like dressings and finishing. Avoid heating due to low heat stability.
- Net carbs (100g)0g
- Fat (100g)100g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100g (raw)
Source: USDA FoodData Central
WHY IT'S KETO-FRIENDLY
- Zero net carbs—fits even strict daily limits
- Pure fat source that helps hit keto macro targets
- High in ALA omega-3s for a better overall fatty-acid balance
- Ideal raw: dressings, dips, and post-cook drizzles (not heat-stable)
- Fat enhances absorption of vitamins A, D, E, and K
- Light, nutty flavor elevates cold dishes without adding carbs
HEALTH BENEFITS
- Provides ALA omega-3 fatty acids that can support healthy lipid profiles
- May help modulate inflammation markers (individual response varies)
- Plant-based option for those who don’t consume fish
- Aids fat-soluble vitamin absorption when paired with vegetables
- Calorie-dense energy source that can improve satiety on keto
- Naturally free of carbs, lactose, and gluten
PREPARATION SUGGESTIONS
COLD SALAD DRESSINGS
Whisk with vinegar-apple-cider, dijon-mustard, herbs, and a bit of olive-oil for a balanced, omega-3–rich vinaigrette.
FINISHING DRIZZLE
Drizzle over steamed asparagus, riced-cauliflower, or grilled salmon after cooking for a nutty boost.
MAYO BLEND
Blend a small portion into homemade mayonnaise (with avocado-oil) to nudge omega-3s without overpowering flavor.
SMOOTHIE SPOON
Add a spoonful to a cold protein-shake or yogurt dip; keep mixtures chilled to protect delicate fats.
WHERE TO BUY
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Barlean's Organic Flaxseed Oil Liquid from Fresh Cold Pressed Flax Seeds, 16 oz
Barlean's cold-presses its flax oil without heat or solvents and bottles it in opaque, oxygen-limiting packaging to curb the rancidity that plagues high-PUFA oils like flaxseed, delivering 7,640mg of ALA omega-3 per tablespoon with zero net carbs for keto.

NatureWise Flaxseed Oil 1,242 mg, Organic, Cold Pressed, Non-GMO - 240 Softgels
For keto dieters who find liquid flax oil messy or hard to dose, NatureWise's cold-pressed softgels deliver 720mg of ALA omega-3 per capsule with no refrigeration or fishy aftertaste, are made in a cGMP-certified US facility with third-party testing, and carry zero net carbs per serving.

Spectrum Essentials Organic Flax Oil with Ultra Lignans, 24 fl oz
Spectrum's organic, cold-pressed flax oil uses a 3-step filtration process to strip contaminants while preserving roughly 7.7g of ALA omega-3 per tablespoon, and its larger 24oz bottle brings a noticeably lower per-ounce cost than Barlean's for keto shoppers who go through flax oil quickly, with zero net carbs per serving.