Some Chinese herbs that may be useful for kidney health are astragalus and the roots of Rheum palmatum. Based on some clinical studies done in China, astragalus and a combination of astragalus and Angelica sinensis show promise as treatment for chronic kidney disease, according to Medscape. These herbs, which often are used in traditional Chinese medicine for many conditions, may protect the kidneys, states the University of Maryland Medical Center.
Astragalus herbal medicines come from the Astragalus membranaceus plant, which contains many different compounds, such as amino acids, polysaccharides and flavonoids. There are studies that suggest that astragalus can decrease proteinuria (an elevation of protein levels in urine) in patients with chronic kidney disease. However, more clinical research studies are necessary to investigate concretely astragalus's true efficacy for this medical condition.
The extract of the roots of Rheum palmatum, which is also known as rhubarb, may possibly be effective for kidney failure, as noted by WebMD. Rhubarb contains the compounds emodin and rhein. A few clinical studies indicate that rhubarb may also help with proteinuria and elevate kidney function, as noted by Medscape.