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Also indexed as:Cochlearia armoracia
Horseradish: Main Image© Steven Foster

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Botanical names:
Cochlearia armoracia

How It Works

Horseradish contains volatile oils that are similar to those found in mustard. These include glucosinolates (mustard oil glycosides), gluconasturtiin, and sinigrin, which yield allyl isothiocynate when broken down in the stomach. In test tubes, the volatile oils in horseradish have shown antibiotic properties, which may account for its effectiveness in treating throat and upper respiratory tract infections.2 At levels attainable in human urine after taking the volatile oil of horseradish, the oil has been shown to kill bacteria that can cause urinary tract infections3 and one early trial found that horseradish extract may be a useful treatment for people with urinary tract infections.4 Further studies are still necessary, however, to confirm horseradish’s safety and effectiveness in treating urinary tract infections.

How to Use It

The German Commission E monograph suggests an average daily intake of 4 teaspoons (20 grams) of the fresh root for adults.5 Alternatively, 1/2–1 teaspoon (3–5 grams) of the freshly grated root can be eaten three times per day. Horseradish tincture is also available and is sometimes taken at 1/2–3/4 teaspoon (2–3 ml) three times daily. The German Commission E also recommends external use of horseradish for respiratory tract congestion as well as minor muscle aches. A poultice can be prepared by grating the fresh root and spreading it on a linen cloth or thin gauze. This is then applied against the skin once or twice per day until a burning sensation is experienced.

References

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The information presented by TraceGains 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. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. 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 2025.