/oss/taxonomy/term/3781/all en /oss/article/nutrition/bananas-potassium-superfood <p>Bananas, like most fruits and vegetables, are high in potassium and low in sodium. We humans get much of our dietary sodium from sodium chloride, otherwise known as salt. While now common and almost ubiquitous, sodium was once rare in our diets and our kidneys have evolved a very efficient mechanism for conserving sodium and preventing its loss in our urine. The kidney will re-absorb about 99% of the sodium filtered through it, and consequently re-absorb a great deal of water as well, since water follows sodium through cell membranes.</p> Fri, 29 Mar 2019 16:00:00 +0000 Christopher Labos MD, MSc 7655 at /oss