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Flaxseed and Flaxseed Oil

Uses

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.

What Are Star Ratings?

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

Used for Why
3 Stars
Constipation
1 Tbsp (15 ml) whole or ground with a full glass of water, one or two times per day
Flaxseed is a mild bulk-forming laxative that’s best suited for long-term use in people with constipation.

The laxatives most frequently used world-wide come from plants. Herbal laxatives are either bulk-forming or stimulating. Bulk-forming laxatives come from plants with a high fiber and mucilage content that expand when they come in contact with water; examples include psyllium, , and fenugreek. As the volume in the bowel increases, a reflex muscular contraction occurs, stimulating a bowel movement. These mild laxatives are best suited for long-term use in people with constipation.

2 Stars
Hypertension and Atherosclerosis
Refer to label instructions
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.
In a double-blind trial, patients with atherosclerosis of the lower extremities (most of whom had high blood pressure) consumed foods that provided daily 30 g of milled flaxseed or placebo foods for 6 months. After 6 months, mean systolic blood pressure was 9.4 mm Hg lower and mean diastolic blood pressure was 6.7 mm Hg lower in the flaxseed group than in the placebo group. It is not known whether flaxseed would have a similar effect in people who do not have atherosclerosis.
1 Star
Menopause
2 tablespoons of flaxseeds twice per day
Supplementing with flaxseeds may improve the frequency and severity of hot flashes in postmenopausal women.

In a preliminary trial, supplementation with crushed flaxseeds for six weeks improved the average hot flash score (a measure of the frequency and severity of hot flashes) by 57% in postmenopausal women who were not receiving estrogen therapy. The treatment consisted of 2 tablespoons of flaxseeds (along with at least 10 ounces of liquid) twice a day. About one-fifth of the women discontinued treatment because of abdominal symptoms or other side effects. In a double-blind trial, daily consumption of 25 g of partially defatted ground flaxseed significantly decreased the number of hot flashes and improved overall menopausal symptoms. However, the improvements were not greater than those in women given a placebo (wheat bran). Because of these conflicting results, the effectiveness of flaxseed as a treatment for menopause remains uncertain.

1 Star
Ulcerative Colitis
Refer to label instructions
Flaxseed is an anti-inflammatory and soothing herb that may be effective in the treatment of ulcerative colitis.

Aloe vera juice has anti-inflammatory activity and been used by some doctors for people with UC. In a double-blind study of people with mildly to moderately active ulcerative colitis, supplementation with aloe resulted in a complete remission or an improvement in symptoms in 47% of cases, compared with 14% of those given a placebo (a statistically significant difference). No significant side effects were seen. The amount of aloe used was 100 ml (approximately 3.5 ounces) twice a day for four weeks. Other traditional anti-inflammatory and soothing herbs, including calendula, , licorice, marshmallow, myrrh, and yarrow. Many of these herbs are most effective, according to clinical experience, if taken internally as well as in enema form. Enemas should be avoided during acute flare-ups but are useful for mild and chronic inflammation. It is best to consult with a doctor experienced with botanical medicine to learn more about herbal enemas before using them. More research needs to be done to determine the effectiveness of these herbs.

In a preliminary trial, people with UC significantly improved on a sugar-free, low-allergen diet with additional nutritional supplementation that included a multivitamin-mineral supplement (2–6 tablets per day); a fish oil supplement (400 mg per day); borage oil (400 mg per day); (400 mg per day); and a probiotic formula containing Lactobacillus acidophilus and other species of beneficial bacteria. Some participants received slight variations of this regimen. Since so many different supplements were given and since the trial was not controlled, it is not possible to say which, if any, of the nutrients was responsible for the improvement observed by the researchers.

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