Use of flax seed, or Linum usitatissimum L., for medicinal purposes dates all the way back to ancient Egypt. In modern times, the flax plant thrives mostly in the northwestern region of the United States and in Canada, according to the National Center for Complementary and Alternative Medicine. It's a common supplement that comes whole, crushed, powdered, in capsules or as an oil. Before taking flax seed, consult a qualified health care professional for advice.
Digestion
The University of Maryland Medical Center, or UMMC, lists flax seed's primary use as its ability to facilitate bowel movements. Its high soluble and insoluble fiber content adds bulk to stool. Flax seed also contain mucilage, another substance that aids stool in traveling through the digestive tract, leading to faster and easier bowel movements. The National Center for Complementary and Alternative Medicine warns that drinking an inadequate amount of water while taking flax seed supplements can increase constipation or lead to an intestinal blockage.
Heart Health
Flax seed contain alpha-linolenic acid, an essential omega-3 fatty acid. The American Heart Association says that omega-3 fatty acids decrease the risk of abnormal heartbeats. They may also lower blood pressure, lower levels of triglycerides and slow the growth of atherosclerotic plaque. Flaxs seed also contain substances called lignans. A 2008 study in "The British Journal of Nutrition" suggests that these substances may affect cholesterol levels. The study found that patients taking flax seed lignan extract experienced a lowering of plasma cholesterol. Flax seed may also reduce the risk of heart disease by reducing inflammation and promoting blood vessel health, according to the UMMC.
Menopause Relief
Flax seed may aid in relieving discomfort associated with menopause, including breast pain, mood swings, vaginal dryness and hot flashes. A 2002 study in "Obstetrics and Gynecology" examined flax seed's effect on menopausal women with high cholesterol. The study concluded that flax seed is as effective in improving mild symptoms of menopause as oral estrogen-progesterone hormone replacement therapy. Flax seed may also promote bone health, which reduces the risk of osteoporosis.
References
- University of Maryland Medical Center: Flaxseed
- National Center for Complementary and Alternative Medicine: Flaxseed and Flaxseed Oil
- American Heart Association: Fish and Omega-3 Fatty Acids
- "British Journal of Nutrition"; Dietary Flaxseed Lignan Extract Lowers Plasma Cholesterol and Glucose Concentrations in Hypercholesterolaemic Subjects; W. Zhang, et al.; June 2008
- "Obstetrics and Gynecology"; Flaxseed Dietary Supplement Versus Hormone Replacement Therapyin Hypercholesterolemic Menopausal Women; Lemay, et al.; September 2002
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