The kidneys detoxify the body. Specialized cells known as podocytes form filters that keep essential nutrients and key compounds in the bloodstream. These filters let toxins and other hazardous chemicals pass into the urine. There are a number of factors that contribute to kidney health including lifestyle choices, toxin exposure, and genetics. Getting adequate quantities of the proper nutrients can help maintain healthy kidney function and prevent the onset of kidney diseases. These nutrients include vitamin B6, vitamin C, vitamin D, calcium, and potassium.