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Flaxseed and Flaxseed Oil

Also indexed as:Lignan, Linseed Oil, Linum usitatissimum, Flax Seed and Flax Seed Oil
Flaxseed and Flaxseed Oil: Main Image

Flaxseed, called linseed in some countries, is a good source of dietary fiber, omega-3 fatty acids, and lignans. Each of these components may contribute to the health effects of eating flaxseed, but flaxseed oil contains no fiber and very little lignan.

  • Reliable and relatively consistent scientific data showing a substantial health benefit.
  • Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
  • For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

Our proprietary "Star-Rating" system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.

For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.

This supplement has been used in connection with the following health conditions:

Used for AmountWhy
Constipation
1 Tbsp (15 ml) whole or ground with a full glass of water, one or two times per day3 stars[3 stars]
Flaxseed is a mild bulk-forming laxative that's best suited for long-term use in people with constipation.
Hypertension and Atherosclerosis
Refer to label instructions 2 stars[2 stars]
In a double-blind trial, eating foods with milled flaxseed lowered both the systolic and diastolic blood pressure in patients with atherosclerosis of the lower extremities.
Menopause
2 tablespoons of flaxseeds twice per day 1 star[1 star]
Supplementing with flaxseeds may improve the frequency and severity of hot flashes in postmenopausal women.
Ulcerative Colitis
Refer to label instructions 1 star[1 star]
Flaxseed is an anti-inflammatory and soothing herb that may be effective in the treatment of ulcerative colitis.

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.