{"id":172,"date":"2016-05-13T17:58:11","date_gmt":"2016-05-13T22:58:11","guid":{"rendered":"https:\/\/medicinalherbals.net\/?p=172"},"modified":"2024-01-07T12:04:57","modified_gmt":"2024-01-07T17:04:57","slug":"rehmannia-glutinosa-root","status":"publish","type":"post","link":"https:\/\/medicinalherbals.net\/rehmannia-glutinosa-root\/","title":{"rendered":"Rehmannia: The Stinky Root with Incredible Benefits"},"content":{"rendered":"\n

What is Rehmannia?<\/strong><\/h2>\n\n\n\n

Rehmannia (Rehmannia glutinosa<\/em>) , also called di huang <\/em>or Chinese foxglove, is a flowering plant that grows throughout China. It can be referred to as either sh\u0113ng d\u00ec hu\u00e1ng (\u751f\u5730\u9ec4) or g\u0101n d\u00ec hu\u00e1ng (\u5e72\u5730\u9ec4) – with \u751f sh\u0113ng meaning life and \u5e72 g\u0101n meaning dried.<\/p>\n\n\n\n

Rehmannia Glutinosa grows to 0.3 to 0.6m tall and has large, deeply-veined leaves, and trumpet-shaped, purple flowers covered with fuzz. The shape of the flowers bears a resemblance to the common foxglove. The word glutinosa <\/em>in Latin means glutinous or sticky, referring to the starchy root of the plant, which is the portion used medicinally. In traditional Chinese medicine, rehmannia is used for a wide variety of conditions. Most commonly, it is combined with other complementary herbs using various formulas. These formulas, discussed below, are extremely popular in Chinese medicine and have also been used in veterinary practices.<\/p>\n\n\n\n

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Rehmannia is thought to nourish the yin, the qualities of which include coolness, dampness, and a downward direction. The Rehmannia root is dark brown in colour, and with its high viscosity, it was once thought to be ideal for settling the qi and drawing it downwards, so that it can flow properly throughout the body. Its original uses ranged from healing broken bones, removing blood impurities, and encouraging muscle growth, to treating fevers. Additionally, it was considered as a tonic for the liver and kidneys\u2014not necessarily the actual organ systems, but the ancient Chinese concept of these systems and their role in aging, building strength, and their interconnectivity with other parts of the body.<\/p>\n\n\n\n

Rehmannia can be taken fresh, dried, or as a steamed preparation with water and rice wine. However, it is most commonly found as a pill or extract.<\/p>\n\n\n\n

Rehmannia Root Benefits and Uses<\/strong><\/h2>\n\n\n\n
  • Increases Testosterone<\/li>
  • Brain Health & Cognitive Performance<\/li>
  • Treats Diabetes<\/li>
  • Gastrointestinal Health<\/li>
  • Antioxidant<\/li>
  • Antiinflammatory<\/li>
  • Liver and Kidney Tonic<\/li>
  • Reduces Menopause Symptoms<\/li><\/ul>\n\n\n\n

    It is difficult to say what pharmacological properties Rehmannia has, since clinical trials of the plant are scarce and it is often used in combination with other herbs. It is known that its main active ingredient is catalpol, an iridoid glycoside that makes up 3-11% of the fresh root. Studies have shown that catalpol may produce the following benefits:<\/p>\n\n\n\n

    Cognitive Performance<\/strong><\/h3>\n\n\n\n

    Catalpol may have an antioxidant effect on glial cells, which make up the protective layer surrounding neurons that is necessary for cognitive health.<\/p>\n\n\n\n

    Increases Testosterone<\/strong><\/h3>\n\n\n\n

    The Rehmannia Eight Formula increases estradiol and testosterone levels in aging female and male rats.<\/p>\n\n\n\n

    Treats Diabetes<\/strong><\/h3>\n\n\n\n

    Rehmannia was shown to decrease hyperglycemia in diabetic rats.<\/p>\n\n\n\n

    Gastrointestinal Disorders<\/strong><\/h3>\n\n\n\n

    An aqueous extract of rehmannia reduced mucosal damage in the stomach, as well as reduced gastric acid production.<\/p>\n\n\n\n

    Overall, Rehmannia has demonstrated antioxidant and anti-inflammatory properties, but its full benefits and efficacy have not yet been determined. Besides clinically studied benefits, Rehmannia also has several uses based on traditional Chinese concepts. For example, it has been used to reduce menopause symptoms due to its yin-nourishing nature, which promotes coolness. It has also been used in China for treating bronchial asthma via the kidneys.<\/p>\n\n\n\n

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    Rehmannia Root Formulas<\/strong><\/h2>\n\n\n\n

    Rehmannia is frequently taken as one of the following formulas:<\/p>\n\n\n\n

    Rehmannia Six<\/strong> (Liu Wei Di Huang Wan<\/em>), originally developed in the Song dynasty as a pediatric treatment, consists of rehmannia, cornus fruit, Chinese yam, alisma (to promote digestion), poria, and moutan bark. The first three herbs act as a tonic, and the last three act as a sedative.<\/p>\n\n\n\n

    Rehmannia Eight<\/strong> (Ba We Di Huang Wan<\/em>) is a derivative of Rehmannia Six. Noted for treating urinary disorders in the Jingui Yao Lue.<\/em> It contains all the above herbs, plus cinnamon and aconite. However, since aconite is very poisonous, it is sometimes replaced in modern-day formulas. Both formulas are used primarily for treating kidney ailments. Rehmannia Eight is also used quite commonly for treating animals as well as humans.<\/p>\n\n\n\n

    Rehmannia Six and Eight have many derivatives which are made by adding and subtracting herbs. It is common to find blends such as Rehmannia 11 and 16, as well as more modern formulas such as Rehmannia Endurance, an energy-boosting pill that is based on Rehmannia Six.<\/p>\n\n\n\n

    Rehmannia is one of our favorite antioxidants, and anti-inflammatories. It’s also great for cognitive performance. https:\/\/t.co\/rLa92JrDJD<\/a><\/p>

    \u2014 MedicinalHerbals (@MedicinalHerbal) February 27, 2017<\/a><\/p><\/blockquote>\n\n\n\n