Burdock (Arctium lappa) is a prickly, burred plant native to Asia, Europe and some parts of North America. In Japan and Europe it is not uncommon to find the root of the plant eaten as a vegetable, much like a carrot. Although the leaves and fruit of the burdock plant can be utilized, the cleaned and dried root is more commonly used and ground into a powder. The powder of the root can be taken orally to treat a variety of ailments or applied topically to care for various skin conditions such as acne, psoriasis or eczema.
Burdock root powder is fortified with healing properties and is conventionally known for its "blood purifying" effects. The root powder is thought to purify the blood by acting as a diuretic; ridding the body of excess fluids and toxins and increasing urinary output. Burdock root powder has also been used in herbal preparations for hair loss, arthritis, diabetes, colds and sore throats.
Emerging evidence has shown positive effects of burdock on blood glucose levels, bacterial infections, HIV, cancer and kidney stones. Regardless of promising evidence, MedlinePlus indicates that limited scientific studies have been conducted in regard to the overall efficacy and use of burdock. Consult with a medical care provider prior to using burdock root powder, especially if you are currently taking other supplements or medications, have any diagnosed medical conditions or are pregnant or breastfeeding.
Diuretic Side Effects
Although burdock root powder has multipurpose healing properties, it is important to be an educated consumer when it comes to side effects. Due to its diuretic properties, the University of Maryland Medical Center warns people who suffer from dehydration to exercise caution with use. By increasing the flow of urine, burdock root powder may contribute to further water loss and create an imbalance of electrolyte (sodium and potassium) levels in the blood. Caution should be taken in patients with chronic conditions. Diuretic effects have especially been reported in patients with HIV.
Blood Glucose Side Effects
Limited research has been conducted in regard to burdock root powder and blood glucose (sugar) levels. Based on the research conducted, MedlinePlus indicates burdock may cause reductions or increases in blood glucose levels. Any patient affected by diabetes or hypoglycemia (low blood sugar) should consult with a medical care provider prior to taking burdock root powder. It may prove beneficial to monitor blood glucose levels and make adjustments in medication regimens as needed.
Other Side Effects and Considerations
Slow heart rate and dry mouth are additional reported side effects as of August 2009 by MedlinePlus. It is thought, however, that these effects are not caused by burdock itself, but rather by contamination of the powder during preparation with belladonna. It is important to "do your homework" when purchasing burdock root powder or any other herbal supplement. Since herbs are not regulated by the U.S. Food and Drug Administration, there is no way to ensure the purity, safety or strength of burdock root powder. When obtaining burdock root powder, read the label and look at the source of the herb prior to purchase. One additional consideration: Burdock root powder may posses tannins (chemical compounds found in plants), which could cause stomach upset and liver or kidney damage in high concentrations.
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