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Photo copyright Steven Foster |
Part used and where grown: The marshmallow plant thrives in wet areas and grows primarily in marshes. Originally from Europe, it now grows in the United States as well. The root and leaves are used medicinally.
Marshmallow has been used in connection with the following conditions (refer to the individual health concern for complete information):
| Rating | Health Concerns |
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Asthma Common cold/sore throat Cough Crohn’s disease Diarrhea Gastritis Gastroesophageal reflux disease (GERD) Indigestion Pap smear (abnormal) Peptic ulcer Ulcerative colitis |
Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary
studies suggesting a health benefit or minimal health benefit. An herb is primarily supported by traditional use,
or the herb or supplement has little scientific support and/or minimal health benefit. |
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Historical or traditional use (may or may not be supported by scientific studies): Marshmallow (not to be confused with confectionery marshmallows) has long been used by herbalists to treat coughs and sore throats.1 Due to its high mucilage content, this plant is soothing to inflamed mucous membranes. Marshmallow is also used by herbalists to soothe chapped skin, chilblains (sores caused by exposure to cold), and minor wounds.
Active constituents: Mucilage, made up of large carbohydrate (sugar) molecules, is thought to be the active constituent in marshmallow. This smooth, slippery substance is believed to soothe and protect irritated mucous membranes. Marshmallow has primarily been used as a traditional herbal soothing agent for conditions of the respiratory and digestive tracts.2
How much is usually taken? The German Commission E monograph suggests 1 1/4 teaspoon (6 grams) of the root per day.3 Marshmallow can be made into a hot or cold water tea. Often 2–3 teaspoons (10–15 grams) of the root and/or leaves are used per cup (250 ml) of water. Generally, a full day’s amount is steeped overnight when making a cold water tea, 6–9 teaspoons (30–45 grams) per three cups (750 ml) of water, or for fifteen to twenty minutes in hot water. Drink three to five cups (750–1250 ml) a day. Since the plant is so gooey, it does not combine well with other plants. Nevertheless, it can be found in some herbal cough syrups. Herbal extracts in capsules and tablets providing 5–6 grams of marshmallow per day can also be used, or it may be taken as a tincture—1–3 teaspoons (5–15 ml) three times daily.
Are there any side effects or interactions? Marshmallow is generally safe with only rare allergic reactions reported.
References:
1. Nosal’ova G, Strapkova A, Kardosova A, et al. Antitussive action of extracts and polysaccharides of marsh mallow (Althea offcinalis L., var. robusta). Pharmazie 1992;47:224–6 [in German].
2. Tomoda M, Shimizu N, Oshima Y, et al. Hypoglycemic activity of twenty plant mucilages and three modified products. Planta Med 1987;53:8–12.
3. Blumenthal M, Busse WR, Goldberg A, et al. (eds). The Complete Commission E Monographs: Therapeutic Guide to Herbal Medicines. Boston, MA: Integrative Medicine Communications, 1998, 166–7.
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The information presented in Healthnotes 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. 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 December 2003.