Japanese Knotweed and Resveratrol
Japanese Knotweed is a herbaceous perennial plant, native to Japan, China and Korea. It is an excellent source of resveratrol, nectar for honeybees and emodin, a mild laxative often used as a nutritional supplement to regulate the bowels.
Many people search for “red wine pills” only to find a product made from a weed! Most resveratrol supplements on the market do not use red wine extract; Instead, Japanese Knotweed is a common commercial source of resveratrol since it is a cheap and easy source. The resveratrol found in Knotweed is just as effective as the compounds found in grape skin and seeds, but since most people are not familiar with knotweed, we don’t often hear about it. The plant is especially useful because of its year-round growth and robustness in different climates.
In China, the plant is called Hu Zhang root and is a traditional Chinese medicinal treatment. It is a close relative of He Shou Wu (Fo-Ti, Fleeceflower). The prepared Fo-Ti root has been used for hundreds of years to prevent premature graying of the hair and provide life essence.
In North America and Europe the species is widely considered an invasive species or weed. It is listed by the World Conservation Union as one of the world's 100 worst invasive species and is very difficult to remove. It's roots can grow up to nearly 10 feet deep! Knotweed is also indentified by the following scientific names: Fallopia japonica, Polygonum cuspidatum and Reynoutria japonica.