What vitamins help with kidney function?

Vitamins that enhance kidney function include vitamin C and vitamin D, according to SFGate. Vitamin B-6 also helps to improve kidney functioning. It's best to include these in your diet rather than as supplements where possible.

Vitamin C has antioxidant properties, which prevent damage caused by oxidative stress to the body's cells, notes SFGate. This helps to keep the body healthy by reducing the load on the kidneys. Foods that contain vitamin C include vegetables, grapefruits and pineapple.

Vitamin D helps to fight chronic kidney disease symptoms, states SFGate. A 2011 publication in the Current Diabetes Reviews backs this claim. Foods that are rich in vitamin D include salmon, fortified soy milk and sardines.