Kidney herbs are those that strengthen, activate, tone or disinfect the kidneys. In addition, the kidneys require proper nutrition to function properly, mostly trace minerals, certain amino acids and vitamin A and P (bioflavanoids). Common kidney herbs are diuretics like dandelion, plantain, parsley, uva ursi and burdock seed. All sweet carminative herbs (cardamom, caraway, cloves, cinnamon, ginger, fennel) are diuretic when drunk as tea. Plantain and parsley give strength and tone. Uva ursi and juniper berries disinfect the kidneys. Marshmallow root soothes the kidney when it is irritated. Hydrangea root and gravel root both are solvents for stones and deposits of all types in the kidneys.