General Dosage
1-2 tablespoons (15-30 mL) daily with food, or 2-6g in capsule form
Maximum dose: 4 tablespoons/day (60 mL); higher doses offer minimal additional benefit and may cause GI discomfort
Flaxseed Oil Dosage Guide
This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer
Dosage Recommendations
General recommendation: 1-2 tablespoons (15-30 mL) daily with food, or 2-6g in capsule form
Timing: With meals for best absorption; morning or evening dosing both effective. Add to smoothies, salads, or yogurt — never cook with flaxseed oil as heat destroys ALA • Take with food for best absorption.
Dosage by Condition
General cardiovascular support
1 tablespoon (15 mL) daily providing ~7g ALAModerate
High cholesterol / lipid management
1-2 tablespoons (15-30 mL) dailyModerate
Skin hydration and barrier function
1 tablespoon (15 mL) daily for 12+ weeksModerate
Systemic inflammation
1-2 tablespoons daily (7-14g ALA)Emerging
Hormonal balance (lignan-rich form)
1-2 tablespoons high-lignan flaxseed oil dailyEmerging
| Condition | Recommended Dose | Evidence |
|---|---|---|
| General cardiovascular support | 1 tablespoon (15 mL) daily providing ~7g ALA | Moderate |
| High cholesterol / lipid management | 1-2 tablespoons (15-30 mL) daily | Moderate |
| Skin hydration and barrier function | 1 tablespoon (15 mL) daily for 12+ weeks | Moderate |
| Systemic inflammation | 1-2 tablespoons daily (7-14g ALA) | Emerging |
| Hormonal balance (lignan-rich form) | 1-2 tablespoons high-lignan flaxseed oil daily | Emerging |
Upper limit: 4 tablespoons/day (60 mL); higher doses offer minimal additional benefit and may cause GI discomfort
Timing & Absorption
With meals for best absorption; morning or evening dosing both effective. Add to smoothies, salads, or yogurt — never cook with flaxseed oil as heat destroys ALA
Best taken with food for optimal absorption.
References
- Pan A, Yu D, Demark-Wahnefried W, Franco OH, Lin X (2009). Meta-analysis of the effects of flaxseed interventions on blood lipids. The American Journal of Clinical Nutrition. DOI PubMed
- Khalesi S, Irwin C, Schubert M (2015). Flaxseed consumption may reduce blood pressure: a systematic review and meta-analysis of controlled trials. The Journal of Nutrition. DOI PubMed
- Neukam K, De Spirt S, Stahl W, Bejot M, Maurette JM, Tronnier H, Heinrich U (2011). Supplementation of flaxseed oil diminishes skin sensitivity and improves skin barrier function and condition. Skin Pharmacology and Physiology. DOI PubMed
- Zhao G, Etherton TD, Martin KR, West SG, Gillies PJ, Kris-Etherton PM (2004). Dietary alpha-linolenic acid reduces inflammatory and lipid cardiovascular risk factors in hypercholesterolemic men and women. The Journal of Nutrition. DOI PubMed
- Burdge GC, Calder PC (2005). Conversion of alpha-linolenic acid to longer-chain polyunsaturated fatty acids in human adults. Reproduction, Nutrition, Development. DOI PubMed
- Rodriguez-Leyva D, Dupasquier CM, McCullough R, Pierce GN (2010). The cardiovascular effects of flaxseed and its omega-3 fatty acid, alpha-linolenic acid. Canadian Journal of Cardiology. DOI PubMed