Plz tel why renal failure patients should consume low salts ?

The kidneys are sick: When you are young and healthy and the kidneys function normally, they can eliminate salt you take in more efficiently. When the kidneys are sick, they lose the ability to get rid of the extra salt, thus body will accumulate excess salt = bad--cause fluid retention, hypertension, heart failure etc..As a result, many things should be restricted in renal failure patient. Consult doc. Good luck.

BP control: High salt diet promotes water retention which results in elevation in blood pressure and swelling in the legs. The water pills (diuretics) work better if a patient consumes less salt. So if you want good BP control and volume control with less medications than low salt diet is the way to go.