Resumo

PALMER, Biff F  e  CLEGG, Deborah J. Are there benefits of a high potassium diet, even in the CKD patient?. Port J Nephrol Hypert [online]. 2017, vol.31, n.2, pp.115-121. ISSN 0872-0169.

Recent data have demonstrated dietary intake of potassium (K+) is well below current recommended nutritional guidelines, and K+ deficiency has been implicated in many diseases to include cardiovascular disease, kidney stones, and osteoporosis. Importantly, dietary supplementation of K+ has favorable effects in reducing blood pressure, decreasing the risk of stroke, improving bone health, and reducing the risk of nephrolithiasis. Unfortunately, the combination of westernized societies where consumption of foods enriched in K+ such as fresh fruits and vegetables is low, with the advent of widely prescribed hypertensive medications which cause hyperkalemia thereby requiring dietary K+ restriction, have led to societal concerns of low K+ consumption leading to decrements in overall public health. Importantly, there are new and novel drugs which have been developed which are capable of binding K+ in the gastrointestinal tract, allowing for diet liberalization affording patients the numerous health benefits of K+ rich diets. Here we highlight new findings indicating there are health-related benefits of K+ consumption even in the patient with reduced renal function such as the chronic kidney disease patient. Lastly we provide recommendations to include the use of new K+ binding agents which can allow liberalization of diets in patients with impaired renal function without development of hyperkalemia

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