Fiber
Flaxseed
Also known as: Flax seed, Ground flaxseed, Flax meal, Linseed
Flaxseed oil is a plant-based source of alpha-linolenic acid (ALA), an omega-3 fatty acid with modest evidence for cardiovascular and inflammatory support. Human studies show moderate benefits for cholesterol and blood pressure, though conversion to EPA/DHA is limited.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every Flaxseed product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | Natural Factors Vitamin D3 125 mcg (5,000 IU) | 89 A | $0.10 |
| 2 | Natural Factors Ubiquinol Active CoQ10 200 mg | 88 A | $1.50 |
| 3 | Natural Factors Ubiquinol Active CoQ10 100 mg | 88 A | $1.03 |
| 4 | Garden of Life Vitamin Code Raw K-Complex | 86 A- | $0.46 |
| 5 | NOW Foods Indole-3-Carbinol | 85 A- | $0.33 |
| 6 | Vital Nutrients Whole Fiber Fusion | 75 B+ | $1.00 |
| 7 | Country Life Ultra Omega 3•6•9 | 74 B+ | $0.62 |
| 8 | SmartyPants Prenatal Organic Multi & Omegas | 73 B+ | $1.40 |
| 9 | SmartyPants Men’s Organic Multi & Omegas | 72 B | $1.27 |
| 10 | SmartyPants Women’s Organic Multi & Omegas | 72 B | $1.27 |
| 11 | Nature's Way Oregano Oil | 70 B | $0.40 |
| 12 | Micro Ingredients Flaxseed Oil Softgels | 69 B | $0.09 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much Flaxseed should I take?
The typical range is 1-2 tablespoons ground daily. Safe long-term
When should I take Flaxseed?
With meals. Yes, with water.
Which form of Flaxseed is best?
Ground/meal — Best absorbed. Other forms in the catalog: Whole seed, Oil, Liquid oil, Softgel capsules, Powder (as in BulkSupplements product).
Is Flaxseed safe?
Commonly reported: Gas, Bloating initially. Serious warnings: Take with adequate water. Safe
Which Flaxseed supplement scores highest?
Natural Factors Vitamin D3 125 mcg (5,000 IU), at 89/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Fiber/digestive health
- Omega-3 (ALA)
- Hormone balance (lignans)
- Heart health
- Cardiovascular support
- Inflammatory response modulation
- Cholesterol management
- General omega-3 supplementation
How it works
- Provides soluble and insoluble fiber
- Rich in ALA omega-3
- Lignans for estrogen modulation
- Supports healthy cholesterol
Dosage
- Typical range
- 1-2 tablespoons ground daily
- Timing
- With meals
- With food
- Yes, with water
- Duration
- Safe long-term
- Special populations
- Digestive support, hormones
Forms
- Ground/meal
- Whole seed
- Oil
- Softgel capsules· 70/100
- Powder (as in BulkSupplements product)· 70/100
Safety
Common side effects
- Gas
- Bloating initially
Contraindications
- Bowel obstruction
Products containing Flaxseed
Top-scoring supplements in our catalog that list Flaxseed on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Good evidence for fiber, lignans, and ALA omega-3 benefits
Grade B: Some human trials support key claims; further confirmation needed.
Related in Fiber
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.