Astragalus is an herb that has been used for centuries by traditional Chinese medicine. It gained popularity in the United States in the 1980s. It is primarily used to support the immune system but may also provide other health benefits. It is important to speak with a doctor before taking dietary supplements to avoid complications.
Description
Astragalus is a perennial plant of the legume family and native to China but is also found in parts of Korea and Mongolia. There are over 2,000 species of astragalus, but generally only two are used in supplements -- Astragalus membranaceus and Astragalus mongholicus. The plant ranges in size from about 16 to 36 inches and the root is harvested for herbal use.
Medicinal Properties
The root of Astragalus is high in antioxidants which protect cells from free radicals, chemical reaction byproducts that can be harmful to the body. Astragalus possesses antibacterial, antiviral and anti-inflammatory properties. In cancer treatment, astragalus may inhibit tumor growth, combat certain side effects of chemotherapy and enhance certain chemotherapy regimes, according to the Memorial Sloan-Kettering Cancer Center.
Indications and Usage
The various medical properties of astragalus may be beneficial for a variety of medical conditions. It has been used in the prevention of colds, influenza and infection. It may also be useful in the treatment of asthma, cardiovascular disease, diabetes, kidney disease, allergies and stomach ulcers, according to the University of Maryland Medical Center. Astragalus is classified as an adaptogen, which is the term for a substance that provides protection from general stresses, both physical and emotional.
Precautions
Adverse reactions or side effects have not been reported with the use of astragalus, but it may interact with certain medications or supplements. It may negatively interact with certain medications that suppress the immune system, such as those taken by cancer or transplant patients, according to the National Center for Complimentary and Alternative Medicine. Pregnant or breastfeeding women should speak with a doctor before using astragalus.
Administration
Astragalus is available in a variety of forms such as an alcohol extract, tea, tablet, powder, injectable liquid or a cream that can be applied to the skin. It may be given to both children and adults but individuals should first speak with a doctor before use. Dosages vary, depending on the person, type of extract and proposed use, but are generally in the range of 1 to 25 g per day.
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