| | | | Red Clover | | | Red clover is a multi-stemmed perennial that thrives in humid, grassy
meadows throughout the world. It is much larger than its familiar
relative, white clover, which is the low-growing, and vigorously spreading
lawn weed. Both, however, exhibit a similar "trifolium" (three
leaf) pattern and white arrowhead-shaped leaf markings. It is the compact,
pink flower tops of the red clover plant that are dried and used
medicinally - as they have been for centuries.
The expectorant and
anti-spasmodic properties of red clover justify its use for repiratory
conditions like asthma and bronchitis. It has also been used externally
for skin conditions such as eczema and psoriasis. The concentrated
isoflavones within red clover have been the subject of many studies, and
research suggests benefits for menopausal symptoms as well as cancer and
cardiovascular disorders. | |
| Common Name | | | Red Clover | | | Botanical Latin Name / Classification | | | Trifolium pratense | | | Parts Used | | | Flowers (blossoms, tops) | | | Other Names | | | Cow Clover, Meadow Clover, Purple Clover, Trefoil, Honey Stalks (so called
in Shakespearean times because it was desired by bees).
Browse Sections | View Red Clover products | | | Description | | | Red clover is a biennial or perennial, multi-stemmed plant widespread
throughout the world in most humid, grassy meadows. The plant may reach a
height of 2 feet with reddish stems and a short rootstock. The clusters of
familiar oval-shaped, lobed leaves emerge as a tri-leaf configuration on
the end of the stems. Each leaflet is marked with a small white
crescent-shaped or arrow-shaped design on the upper surface. These
three-lobed leaves of red clover were associated with the Holy Trinity by
medieval Christians. Red clover blooms with small, attractive pink flower
heads which are cultivated, dried and used medicinally.
Browse Sections | View Red Clover products | | | Traditional Internal Uses | | | Red Clover is one of the world's oldest agricultural crops, cultivated
since prehistoric times, and has a long history as a religious and
magical symbol. Although red clover is native to Europe, it wasn't until
Native Americans had discovered its medicinal properties that it was
recognized as a medicine in Europe.
Red clover has been used in
Chinese medicine and Western folk medicine for its diuretic and
expectorant properties. It has been associated with conditions of the
respiratory tract such as bronchitis, asthma, and stubborn, dry coughing
spells. Due to its well-documented anti-spasmodic properties, red clover
may be paricularly beneficial for those with the whooping cough.
As
an alterative, or detoxifying agent, red clover has been considered
beneficial for chronic skin conditions. Red clover may be safely used for
children with skin problems and in any case of childhood eczema. It may be
of particular benefit for children with eczema/asthma syndrome, and it is
also of value in other chronic skin conditions such as
psoriasis.
Red clover is also thought to have blood purifying
properties, as well as the ability to stimulate urine, mucous, and bile
production. Concentrated isoflavones have shown promise in the treatment
of menopausal symptoms such as hot flashes, cardiovascular health, and
bone loss due to osteoprosis.
According to the "Doctrine of
Signatures" (the ideal popularized in the 17th century that God has
"marked" every natural creation with a sign of its usefulness),
red clover's crescent-shaped leaf markings were an indication that it
could benefit those with cataracts.
Browse Sections | View Red Clover products | | | Traditional Topical Uses | | | The fresh, crushed flowers of red clover can be applied directly to the
skin to relieve the pain and itching associated with insect bites and
stings. A tincture of red clover in water has been used effectively as an
eyewash for eye irritations, allergies, and conjunctivitis. An infusion of
the flowers can be applied as a douche to relieve vaginal itching.
Poultices of red clover have been used locoally for skin ulcerations and
cancer growths.
Browse Sections | View Red Clover products | | | Indications | | | Primary Indications: Menopause, Cardiovascular Disorders, Osteoporosis, Cancer / Cancer Prevention, Hypercholesterolemia, Endocrine Disorders
Secondary Indications: Bronchitis, Asthma, Whooping Cough, Respiratory Problems, Skin Disorders, Eczema (Dermatitis), Psoriasis, Benign Prostatic Hypertrophy (BPH)
Other Indications: Cataracts, Conjunctivitis / Blepharitis, Food Allergies / Sensitivities, Gout, Immunity / Immune Disorders, Insect Bites and Bee Stings, Liver Disorders, Toxicity / Toxemia, Ulcers, Vaginal Infection / Discharge (Vaginitis)
Primary Indications: Hot Flashes
Secondary Indications: Coughing, Skin Itch
Other Indications: Fever
Browse Sections | View Red Clover products | | | Actions | | | Alterative (Restorative), Anti-Asthmatic, Anti-Inflammatory, Anticancer / Antitumor, Antispasmodic, Dermatological Agent, Detoxifying, Diuretic, Estrogenic, Expectorant, Relaxant, Sedative, Depurative
Browse Sections | View Red Clover products | | | Constituents / Nutrients | | | Carbohydrates: Arabinose, glucose, glucuronic acid,
rhamnose, xylose (following hydrolysis of saponin glycosides);
polysaccharide (a galactoglucomannan).
Coumarins:
Coumarin, medicagol.
Isoflavonoids: Biochanin A,
daidzein, formononetin, genistein, pratensin, trifoside, calycosine
galactoside(1) and pectolinarin.
Flavonoids:
Isorhamnetin, kaempferol, quercetin, and their
glycosides.(2)
Saponins: Soyasapogenols B-F (C-F
artefacts) and carbohydrates (see above) yielded by acid
hydrolysis.(3)
Other Constituents: Coumaric acid,
phaseolic acid, salicylic acid, trans- and cis-clovamide (L-dopa
conjugated with trans- and cis-caffeic acids), resin, volatile oil
(containing furfural),(4) fats, vitamins and minerals. Cyanogenetic
glycosides have been documented for a related species, Trifolium
repens.
Browse Sections | View Red Clover products | | | Scientific Research and Pharmacologicial Actions | | | In Vitro and Animal Studies
Biochanin A,
formononetin, and genistein (isoflavones) are known to possess oestrogenic
properties.(5) The saponin constituents are reported to lack any
haemolytic or fungistatic activity.(3) A possible chemoprotective effect
has been documented for biochanin A, which has been reported to inhibit
carcinogenic activity in cell culture.(6)
Red clover is known as an
alterative agent (i.e., one that produces gradual beneficial changes in
the body, usually by improving nutrition; also known as a "blood
cleanser"). It is a traditional remedy for psoriasis and eczema.
However, the mechanism of action and constituents responsible for red
clover's purported benefit in skin conditions are unknown. Modern research
has revealed that red clover also contains high amounts of isoflavones,
such as genistein, which have weak estrogen-like properties.7 Modern
research has focused on a red clover extract high in isoflavones as a
possible treatment for symptoms associated with menopause and
cardiovascular health in menopausal women. In a double-blind study,
administration of 80 mg of isoflavones per day from red clover reduced the
frequency of hot flashes in postmenopausal women. The benefit was
noticeable after 4 weeks of treatment and became more pronounced after a
total of 12 weeks.8 Another double-blind trial found that red clover
improved cardiovascular function in menopausal women,9 Various laboratory
studies and one case report of a man with prostate cancer suggest red
clover isoflavones may help prevent cancer.10 11 In another case study,
use of red clover by a man with prostate cancer led to noticeable
anticancer effects in his prostate after the cancer was surgically
removed. Although the isoflavones in red clover may help prevent certain
forms of cancer (e.g., breast and prostate), further studies are needed
before red clover is recommended for cancer
patients.
Cardiovascular Health
A recent study found
that menopausal women taking red clover supplements experienced a
significant improvement in arterial compliance (a measure of the strength
and resilience of the arterial walls). Arterial compliance diminishes
during menopause and may increase a woman's risk for heart
disease.
Menopause
Several studies of a proprietary
extract of red clover isoflavones suggest that it may significantly reduce
hot flashes in menopausal women.
Osteoporosis
Some
studies suggest that a proprietary extract of red clover isoflavones may
slow bone loss and even boost bone mineral density in pre- and
perimenopausal women.
Cancer
Laboratory and animal
studies have found that red clover isoflavones may protect against the
growth of breast cancer cells. This is surprising because estrogens (and
isoflavones have estrogenic properties) have generally been thought to
stimulate the growth of breast cancer in women. Until further research has
been conducted and more information is available, the use of red clover
isoflavones or other red clover products should probably be avoided in
women with a history of breast cancer.
Browse Sections | View Red Clover products | | | Research | | | "Red Clover Can Help Hot Flashes" "Red Clover: The Ideal Women's Herb?" "Red Clover: Best Therapy For Treating Enlarged Prostate?"
Browse Sections | View Red Clover products | | | Precautions / Contraindications | | | In the USA, red clover is listed as GRAS (Generally Recognized As
Safe).
Despite red clover's short-term use as a cough remedy for
children, isolated red clover isoflavone products (much more highly
concentrated than the whole herb) are not recommended for children, and
should be avoided until its safety is established.
Red clover
supplements should not be taken by pregnant or breast-feeding women.
Browse Sections | View Red Clover products | | | Interaction with Medications | | | Before taking red clover, consult your health care practitioner if you are
on the following medications:- Estrogens
(Combined)
- Heparin
- Ticlopidine
- Warfarin
Be
cause of the estrogen-like properties in red clover isoflavones, women
with a history of breast cancer should avoid red clover (some studies
suggest that synthetic and/or natural estrogens may increase the risk of
breast cancer). Red clover isoflavones should be used with caution, if at
all, by people receiving hormone therapy (including birth control pills)
containing estrogen, progesterone, androgen or any derivatives of these
hormones. Because of the increased risk of bleeding associated with red
clover, individuals taking blood-thinning medications (such as warfarin or
aspirin) or blood-thinning herbs and supplements (such as ginkgo, ginger,
garlic, and vitamin E) should avoid red clover.
Browse Sections | View Red Clover products | | | Possible Side Effects | | | Urticarial reactions have been documented. Infertility and growth
disorders have been reported in grazing animals. These effects have been
attributed to the oestrogenic isoflavone constituents, in particular to
formononetin.(5)
While non-fermented red clover is considered safe,
fermented red clover may cause bleeding and should be avoided.
Browse Sections | View Red Clover products | | | Dosage | | | Dried Flowerhead: 4 g or by infusion three times
daily.
Dried Extract: Red clover capsules are generally
available in strengths that range from 200 to 500 mg. Within herbal
blends, quantities of red clover are significantly smaller. Typically, a
capsule strength of 350 to 450 mg is recommended to be taken 3 times
daily.
Liquid Extract: 1.5-3.0 mL (1 : 1 in 25% alcohol)
three times daily.
Tincture: 1-2 mL (1 : 10 in 45% alcohol)
three times daily.
Browse Sections | View Red Clover products | | | Preparation | | | A red clover tea can be prepared by adding 1 cup (250 mL) of
boiling water to 2-3 teaspoons (10-15 grams) of dried flowers. Allow to
steep while covered for 10 to 15 minutes. Three cups may be taken daily.
Browse Sections | View Red Clover products | | | References | | | 1. Saxena VK, Jain AK. A new isoflavone glycoside from Trifolium pratense.
Fitoterapia 1987; 58: 262-263. 2. Jain AK, Saxena VK. Isolation and
characterisation of 3-methoxyquercetin 7-O-beta-D-glucopyranoside from
Trifolium pratense. Natl Acad Sci Lett 9: 379-380. 3. Olesek WA,
Jurzysta M. Isolation, chemical characterization and biological activity
of red clover (Trifolium pratense L.) root saponins. Acta Soc Bot Pol
1986; 55: 247-252. 4. Opdyke DLJ. Furfural. Food Cosmet Toxicol 1978;
16: 759-764. 5. Kelly RW et al. Formononetin content of `Grasslands
Pawera' red clover and its oestrogenic activity to sheep. NZ J Exp Agric
1979; 7: 131-134. 6. Cassady JM et al. Use of a mammalian cell culture
benzo(a)pyrene metabolism assay for the detection of potential
anticarcinogens from natural products: inhibition of metabolism by
biochanin A, an isoflavone from Trifolium pratense L. Cancer Res 1988; 48:
6257-6261.(PubMed) 7. Leung AY, Foster S. Encyclopedia of Common
Natural Ingredients Used in Food, Drugs, and Cosmetics, 2d ed. New York:
John Wiley & Sons, 1996, 177-8. 8. van de Weijer PHM, Barentsen R.
Isoflavones from red clover (Promensilr) significantly reduce menopausal
hot flush symptoms compared with placebo. Maturitas 2002;42:187-93. 9.
Nestel PJ, Pomeroy S, Kay S, et al. Isoflavones from red clover improve
systemic arterial compliance but not plasma lipids in menopausal women. J
Clin Endocrinol Metab 1999;84:895-8. 10. Yanagihara K, Toge T, Numoto
M, et al. Antiproliferative effects of isoflavones on human cancer cell
lines established from the gastrointestinal tract. Cancer Res
1993;53:5815-21. 11. Stephens FO. Phytoestrogens and prostate cancer.
Possible preventive role. Med J Australia 1997;167:138-40.
Our
thanks to the following information resources: MedicinesComplete.com,
American Botanical Council (Herbalgram.org), Healthandage.com,
Vitacost.com, and Purplesage.org.
Browse Sections | View Red Clover products | |
| | 49 total products | | | Red Clover (Read all about Red Clover.)
Botanical Latin Name: Trifolium pratense Plant Part: Flowers (blossoms, tops) | |
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Red Clover - Health - Red Clover Tops Tea (Loose) 4 oz / 114 g A Powerful Treatment For Weakened Immune Systems.
16.09 US More Info
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Red Clover - Health - Red Clover Tops Tea (Loose) 8 oz / 227 g A Powerful Treatment For Weakened Immune Systems.
25.57 US In Stock - Ships Today! More Info
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Red Clover - Health - Red Clover Tops Tea 25 tea bags A Powerful Treatment For Weakened Immune Systems.
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Red Clover - Health - Red Clover Tops Tea 50 tea bags A Powerful Treatment For Weakened Immune Systems.
22.35 US In Stock - Ships Today! More Info
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Red Clover - Health - Red Clover Tops - Liquid Extract / Tincture (1:5) - Alcohol-Free 1 fl oz / 30 mL Preserve Healthy Cognitive Functions!
10.82 US More Info
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Red Clover - Health - Red Clover Tops - Liquid Extract / Tincture (1:5) - Strawberry Flavored Alcohol-Free 1 fl oz / 30 mL Preserve Healthy Cognitive Functions!
10.82 US More Info
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Red Clover - Health - Red Clover Tops - Liquid Extract / Tincture (1:5) - Chocolate Flavored Alcohol-Free 1 fl oz / 30 mL Preserve Healthy Cognitive Functions!
10.82 US More Info
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Red Clover - Health - Red Clover Tops - Liquid Extract / Tincture (1:5) - Vanilla Flavored Alcohol-Free 1 fl oz / 30 mL Preserve Healthy Cognitive Functions!
10.82 US More Info
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Red Clover - Health - Red Clover Tops - Liquid Extract / Tincture (1:5) - Mint Flavored Alcohol-Free 1 fl oz / 30 mL Preserve Healthy Cognitive Functions!
10.82 US More Info
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Red Clover - Health - Red Clover Tops - Cream 2 oz / 57 g
16.24 US More Info
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Red Clover - Health - Red Clover Tops - Salve / Ointment 2 oz / 57 g
17.20 US More Info
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Red Clover - Health - Red Clover Powder 4 oz / 114 g
16.93 US In Stock - Ships Today! More Info
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These statements have not been evaluated by the Food and Drug Administration (FDA). Products are intended to support general well being and are not intended to treat, diagnose, mitigate, prevent, or cure any condition or disease. If conditions persist, please seek advice from your medical doctor.
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