|
Horsetail (Equisetum arvense), an herbal remedy dating back to at least
ancient Roman and Greek medicine, was used traditionally to stop bleeding,
heal ulcers and wounds, and treat tuberculosis and kidney problems. The
name Equisetum is derived from the Latin roots equus, meaning
"horse" and seta, meaning "bristle."
Today,
horsetail continues to have medicinal values. The plant's stems are rich
in silica and silicic acids, which help mend broken bones and form
collagen, an important protein found in connective tissue, skin, bone,
cartilage, and ligaments. Horsetail is also used to treat infections of
the urinary tract, kidney and bladder stones, and as topical therapy for
burns and wounds.
Function:
1、Diuretic
& Kidney Problems
The most notable use for horsetail is as a mild
diuretic (''water pill'') to increase urination and lessen swelling, and
as a remedy for various bladder and kidney problems (including kidney
stones and bladder infections). Horsetail is an excellent astringent for
the genito-urinary system, reducing hemorrhage and healing wounds thanks
to the high silica content. It is also invaluable in the treatment of
incontinence and bed wetting in children. It is considered a specific in
cases of inflammation or benign enlargement of the prostate gland.
2、Osteoporosis
The
essential element, silica, is presented in very large amounts in
horsetail. Silica is necessary for the body to properly utilize calcium.
Many people diagnosed with calcium deficiencies are not deficient in
calcium at all, they actually lack silica in their diets so that the
calcium is not properly utilized by the body and forms deposits. So some
experts have suggested that silica is a vital component for bone and
cartilage formations. This would indicate that horsetail may be beneficial
in preventing osteoporosis.
3、Arthritis and
atherosclerosis
Horsetail’s
high content in silica might help explain its use in conditions of
arthritis and atherosclerosis, since both joint and arterial tissue are
rich in silica.
4、Brittle
nails
Anecdotal
reports suggest that horsetail
may be of some use in the treatment of brittle nails10. This
may be due to the high content of silicic acid and silicates in horsetail,
which provide approximately 2 to 3% elemental silicon.
5、Wound
healing
Horsetail
can be used both internally and externally to decrease inflammation and
promote wound healing. It is excellent for healing wounds, strengthening
connective tissue and because of its styptic properties it helps to heal
bleeding ulcers. Avoid use with anti-hypertensive drugs.
Safety
Horsetail remedies prepared from Equisetum arvense are generally
considered safe. However, you should not take horsetail if you have edema
(excessive fluid in body tissue) associated with heart or kidney problems.
Dosage
Adequate
fluid should be consumed when taking horsetail preparations orally. A
daily dosage of 500-800mg 7% standardized horsetail silica is recommended
(equaling to 2 to 3 g dried horsetail herb), prepared by pouring boiled
water. Drink during the day between meals.
Chemistry:
The
horsetail extract is standardized to 7% silicic acid.
References:
1.
Achuff, Peter L. 1989. Old-growth forests of the Canadian Rocky Mountain
national parks. Natural Areas Journal. 9(1): 12-26. [7442]
2. Almack, Jon. 1986. Grizzly bear habitat use, food habits, and movements
in the Selkirk Mountains, northern Idaho. In: Contreras, Glen P.; Evans,
Keith E., compilers. Proceedings--grizzly bear habitat symposium; 1985
April 30 - May 2; Missoula, MT. Gen. Tech. Rep. INT-207. Ogden, UT: U.S.
Department of Agriculture, Forest Service, Intermountain Research Station:
150-157. [10815]
3. Baker, William L. 1989. Classification of the riparian vegetation of
the montane and subalpine zones in western Colorado. The Great Basin
Naturalist. 49(2): 214-228. [7985]
4. Bastin, Harold. 1955. Plants without flowers. New York: Philosophical
Library. 146 p. [20696]
5. Beaven, George Francis; Oosting, Henry J. 1939. Pocomoke Swamp: a study
of a cypress swamp on the eastern shore of Maryland. Bulletin of the
Torrey Botanical Club. 66: 376-389. [14507]
6. Bernard, Stephen R.; Brown, Kenneth F. 1977. Distribution of mammals,
reptiles, and amphibians by BLM physiographic regions and A.W. Kuchler's
associations for the eleven western states. Tech. Note 301. Denver, CO:
U.S. Department of the Interior, Bureau of Land Management. 169 p. [434]
7. Bradley, Anne F.; Noste, Nonan V.; Fischer, William C. 1992. Fire
ecology of forests and woodlands in Utah. Gen. Tech. Rep. INT-287. Ogden,
UT: U.S. Department of Agriculture, Forest Service, Intermountain Research
Station. 128 p. [18700]
8. Cloutier, Daniel; Watson, Alan K. 1985. Growth and regeneration of
field horsetail (Equisetum arvense). Weed Science. 33: 358-365. [20699]
9. Clute, Willard Nelson. 1928. The fern allies of North America north of
Mexico. Joliet, IL: Willard N. Clute & Co.. 278 p. [20695]
10. Corns, I. G. W. 1983. Forest community types of west-central Alberta
in relation to selected environmental factors. Canadian Journal of Forest
Research. 13: 995-1010. [691]
11. Correll, Donovan S. 1956. Ferns and fern allies of Texas. Renner, TX:
Texas Research Foundation. 188 p. [20697]
|