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Fiber

Flaxseed

Also known as: Flax seed, Ground flaxseed, Flax meal, Linseed

B
Evidence

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.

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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
  • Liquid oil· 70/100
  • Softgel capsules· 70/100
  • Powder (as in BulkSupplements product)· 70/100

Safety

Common side effects

  • Gas
  • Bloating initially

Contraindications

  • Bowel obstruction

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.