Dong quai, also known as Angelica sinensis, is an herb that's been used in traditional Chinese medicine for hundreds of years, primarily in China, Korea and Japan. Dong quai means "return to order" due to its purported ability to return the body to a state of equilibrium by nourishing the blood and getting energy levels into sync. Dong quai supplements are most commonly used to treat problems associated with the female reproductive system.
Properties
Dong quai is rich in vitamin E and iron according to Encyclopedia.com. It also contains magnesium, niacin, potassium and vitamins A, C and B12. The phytochemicals and flavonoids found in dong quai may have either antioxidant or hormone-like effects. Antioxidants may shield cells from the harmful effects of erratic molecules known as free radicals.
History
The touted ability of dong qaui to treat gynecological problems dates back to the early 1900s in Europe, according the Mayo Clinic. Today dong quai is gaining notoriety for its purported mild estrogen-like properties. However, its hormonal effects remain uncertain.
Female Ginseng
Dong qaui sometimes is recommended to relieve menstrual disorders such as cramps, erratic menstrual cycles and premenstrual syndrome (PMS), according to the University of Maryland Medical Center (UMMC)--hence its nickname, "female ginseng." Dong qaui is also purported to relieve symptoms of menopause which often includes hot flashes, vaginal dryness and sleep disturbances.
Evidence
There is scant scientific evidence to support the effectiveness of dong quai for issues related to the female reproductive system or for any condition, according to the Mayo Clinic. Most of the available clinical studies have either been inadequately designed or drawn unimpressive conclusions. The UMMC notes that more studies are needed to see whether dong quai is safe or effective.
Dosage
Dong quai supplements are available in a variety of forms, including tablets and powders. The UMMC reports there is no recommended dose for dong quai, because there is limited information available on its safety in humans. Dried dong quai root can be chewed in quarter-inch sections for a total of four grams, three times daily, according to Encyclopedia.com.
Precautions and Side Effects
People with chronic diarrhea or abdominal bloating should not take dong quai supplements, according to the UMMC. When taken in high doses, dong quai may increase sun sensitivity and cause skin inflammation and rashes. Children should not take dong quai because of the absence of sufficient safety information.
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