Kidneys are an important organ in your body because of their function to detox the organism and remove waste and toxins out of it. They work with the body in order to regulate the blood pressure, help produce red blood cells and synthesize vitamin D. For maintain them in their optimal health you need to eat a healthy diet, exercise and stay hydrated. An a little help from nature will do you good also.
These herbs are quite powerful at cleansing your kidneys and maintaining them healthy:
- Chanca Piedra
Chanca piedra, or “stone breaker,” is a favorite in South America for supporting the kidneys and clinical trials have confirmed the plant’s effectiveness. It’s common in the region and its widespread use has earned it a positive reputation in Ayurvedic medicine as a helpful herb for kidney, bladder, and liver health.
Goldenrod was used extensively among many Native American tribes for promoting urinary tract health.
Research has found that the herb tones the urinary tract and is helpful for detoxifying the kidneys. 
- Hydrangea Root
Hydrangea root was popular among Native Americans and early settlers, both of whom used the plant for promoting kidney and bladder health. Hydrangea root acts as a solvent and is thought to smooth the jagged edges of kidney stones. Hydrangea root also appears to help the body properly use calcium, an action that
may be helpful for discouraging kidney stones from forming in the first place.
Horsetail is a common weed with diuretic properties; it’s helpful for increasing urine output to flush the kidneys and urinary tract. It’s also an antioxidant and offers that realm of benefits to the kidneys and renal system.  Whether consumed as a tea or in a capsule, horsetail is a great herb to add to your diet!
- Celery Root
Both the root and seeds of celery have been used for centuries as a natural diuretic. What positive feature do diuretics have? They can help your body eliminate toxins by increasing urine output. Celery root has long been considered a stimulating tonic for the kidneys as it contains nutrients like potassium and sodium.
- Gravel Root
Also known as Joe Pye weed, gravel root has a long history of use by Native Americans and early American colonists for promoting kidney and urinary health. Its effectiveness may be partly due to its euparin content— a solvent with potent activity against harmful organisms.  This may explain why many believe it’s effective at discouraging infections.
Also called “bearberry,” uvaursi has been used by many cultures. It’s an astringent that can soothe and tone the urinary tract and research has also found evidence to support its traditional use for cleansing the kidneys.
- Marshmallow Root
As a soothing herb, marshmallow root may calm the tissues of the urinary tract. It’s also a gentle diuretic that encourages urination.
- Dandelion root
Often mistaken as an annoying weed with no useful purpose, dandelion is actually loaded with benefits —both the leaf and the root.  Dandelion root, specifically, is a diuretic and promotes waste elimination.
A favorite herb among chefs, parsley is an aromatic, flavorful herb commonly used in herbal medicine. As a diuretic, it’s helpful for reducing the buildup of toxins in the kidneys and entire urinary tract.