Horseradish Root Extract
Also known as: Horseradish, Cochlearia armoracia, *Armoracia rusticana*
Overview
Horseradish root extract is derived from the root of *Armoracia rusticana*, a perennial plant known for its pungent flavor and medicinal properties. This extract is widely recognized for its potential antibacterial, anti-inflammatory, and antioxidant effects. The bioactive components, especially glucosinolates, are converted to iso-thiocyanates during enzymatic breakdown, which contribute significantly to its health benefits. While the majority of research has been conducted in vitro or in animal models, there are emerging studies involving human participants, leading to a moderate level of evidence. However, the overall quality of research remains diverse, emphasizing the need for more rigorous clinical trials to validate these effects.
Benefits
Horseradish root extract is well-studied for its antibacterial activity against conditions like urinary tract infections (UTIs) and respiratory infections. Evidence indicates that it may be particularly beneficial for individuals suffering from recurrent UTIs, offering a natural alternative to antibiotics. In vitro studies have demonstrated significant antibacterial effects, while its anti-inflammatory properties may aid in reducing bodily inflammation. Though antioxidant and anticancer potentials are suggested in preliminary studies, these benefits are less explored amongst human populations. It’s noted that specific effect sizes in humans remain under-documented, warranting further investigation.
How it works
The effectiveness of horseradish root extract is primarily attributed to its bioactive compound, isothiocyanates, which exert antibacterial effects by inhibiting bacterial growth and adhesion. These compounds interact with bacterial cell walls and associated enzymes, disrupting their function. The extract particularly targets urinary and respiratory systems, reducing both bacterial load and inflammation, with high local concentrations achieved in urine following kidney excretion. This action underscores its therapeutic applicability in treating infections such as UTIs.
Side effects
Horseradish root extract is generally recognized as safe when used properly but can induce gastrointestinal irritation in sensitive individuals. Common side effects include discomfort such as heartburn or stomach upset. Allergic reactions and skin irritations are less frequent, though they may occur. There is a risk of potential interactions with anticoagulants due to its antiplatelet effects. Precaution is advised for pregnant or breastfeeding women, as safety in these populations has not been firmly established. Furthermore, individuals with stomach ulcers or other gastrointestinal issues should approach the use of this extract with caution.
Dosage
Establishing a precise dosage for horseradish root extract is challenging due to its varying forms and preparations; it is often utilized in tandem with other herbs. While no definitive minimum effective dose exists, typical recommendations suggest starting low and adjusting based on individual tolerance, particularly to avoid gastrointestinal discomfort. Generally, it's taken alongside meals to reduce side effects; formulations can include capsules or liquid extracts. Optimal dosages can differ based on specific use, and while maximum dosage thresholds remain undefined, it's essential to follow provided directions to ensure safety and efficacy.
FAQs
What should I do if I experience gastrointestinal discomfort?
If gastrointestinal discomfort occurs, consider reducing the dosage or taking the extract with a larger meal to mitigate issues.
Is horseradish root extract safe for everyone?
While typically safe for most, individuals with certain conditions like stomach ulcers should exercise caution and consult a healthcare provider.
When is the best time to take horseradish root extract?
It’s recommended to take horseradish root extract with meals to minimize potential gastrointestinal side effects.
Can horseradish root extract replace antibiotics?
Horseradish extract may assist in managing certain infections, but it should not be seen as a substitute for prescribed antibiotics in severe cases.
What should I know about potential interactions?
Horseradish may interact with blood thinners, so it's important to discuss its use with a healthcare professional if you are on such medications.
Research Sources
- https://www.mdpi.com/2079-6382/13/11/1036 – This retrospective cohort study found that a combination of horseradish and nasturtium herb effectively managed urinary tract infections, reducing the reliance on antibiotics.
- https://pubmed.ncbi.nlm.nih.gov/35988845/ – An in-depth phytochemical analysis underscored the antibacterial activity of horseradish, highlighting isothiocyanates' effectiveness against numerous bacterial strains.
- https://www.mdpi.nlm.nih.gov/2076-3417/11/2/680 – This study presented the anti-inflammatory effects of horseradish through the reduction of inflammatory markers in macrophages, demonstrating its potential in inflammation management.
- https://pubmed.ncbi.nlm.nih.gov/26411988/ – The findings here provided insight into the biochemical properties of horseradish, reinforcing its medicinal applications and prompting the need for further clinical research.
Supplements Containing Horseradish Root Extract

Tree Country Allergy & Sinus
WishGarden

ALJ
Nature's Sunshine

Horseradish Alcohol Free
Hawaii Pharm

Horseradish
Hawaii Pharm
Rapid Immune Boost
Herb Pharm
Rapid Immune Boost
Herb Pharm
Rapid Immune Boost
Herb Pharm

Pollen Defense
Herb Pharm

LIV-J
Nature's Sunshine

Seasonal Allergy Formerly ALJ
Nature's Sunshine