How do your kidneys help maintain your overall health?

Waste excretion. Kudneys help to filter out toxins, electrolyte balance, fluid balance, red blood cell production, bone metabolism and several others.
MANY REASONS. Your kidneys serve many functions to maintain your overall health. They are best known for eliminating wasteful products from your body through urination. However, they are also involved in maintaining your blood pressure, producing precursors to red blood cells, metabolizing medications, and involved in maintaining bone mass.