Botanical: Rehmannia glutinosa
Family: Scrophulariaceae (figwort/snapdragon, but placement still uncertain)
Other common names: Chinese Foxglove, Shen di huang, Yellow Earth, Ti Huang Chiu
Long used in China to heal many ailments and even as a Tonic to Prolong Life, Rehmannia Root is becoming popular in the West as a blood refresher. It is often recommended to regulate deficient blood patterns, such as anemia, irregular menses, uterine and postpartum bleeding, pallor and light-headedness. Also called a Tonic for the Blood, Rehmannia helps to improve circulation throughout the body, especially to the brain. Healthy blood is a good start for a healthier, better body.
The information presented herein by Herbal Extracts Plus is intended for educational purposes only. These statements have not been evaluated by the FDA and are not intended to diagnose, cure, treat or prevent disease. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.
Rehmannia Root is a native of China and is one of the first species of the genus to be introduced and cultivated in the West. It thrives in light, moist, well-drained, neutral-to-acid, sandy soil in full sun; and when cultivated, the thick, reddish-yellow roots are lifted in autumn or early winter for use in herbal medicine. It has been called Chinese Foxglove due to its superficial resemblance to the genus, Digitalis, or Common Foxglove. At the moment, the current placement of the genus is uncertain; it is said to belong neither to the family Scrophulariaceae
, to which many other former Scrophulariaceae have been transferred. Rehmannia Root is one of the most popular tonic herbs in Traditional Chinese Medicine (TCM), where it has been used for thousands of years. Listed as one of the fifty most important Chinese herbs, it was first mentioned in Chinese medical literature during the Han Dynasty (206 B.C.- A.D.23). The fresh or dried roots have been used in China for centuries to treat a long list of ailments and was even used as a tonic to counter the effects of ageing! The roots were steamed in rice wine, known as shu di huang, and were described in the Illustrated Classic of the Materia Medica by Su Song (A.D. 1061). Some of the constituents included in Rehmannia Root are beta-sitosterol, calcium, copper, glucose, glucosamine, histidine, mannitol, zinc, amino acids and vitamins A, B, C and D.
Rehmannia Root is considered a tonic for the blood and enhances circulation throughout the body, especially to the brain. As a blood energizer, the herb has been used to treat blood-related deficiencies, including anemia, dizziness, pallid face and light-headedness. It is also used to regulate menstrual cycles and control hemorrhage of all kinds, including excessive menstruation; and women find the herb helpful when used to regulate flow and strengthen the body after the weakening effects of childbirth.
The glycoside content in Rehmannia Root helps to manufacture certain hormones that are believed to ease many unpleasant menopausal symptoms, including hot flashes, restlessness, insomnia and loss of bone strength. Rehmannia Root has also been regarded as an effective fertility enhancer.
Rehmannia Root is thought to protect the liver and shows promise in relieving hepatitis (when used by herbalists in combination with licorice). Some studies echo the ancient claim that the herb may actually strengthen the liver, kidneys and heart.
By preventing the depletion of stored glycogen, Rehmannia Root may be effective in the treatment of hypoglycemia.
Rehmannia Root is a mild diuretic, promoting the flow of urine and helping to reduce fever. It is sometimes referred to as a refrigerant that helps to disperse heat from the body.
Pregnant and nursing women should not use Rehmannia Root Herbal Supplement, and overuse of the herb (many times its recommended use) may lead to abdominal distension and loose stools. Other side effects may include nausea and abdominal pain.