• Wilfred Druml, Thomas Staudinger, and Michael Joannidis.
• Division of Nephrology, Department of Medicine III, Vienna General Hospital, Währingergürtel 18-20, 1090, Vienna, Austria. wilfred.druml@meduniwien.ac.at.
• Crit Care. 2024 Aug 7; 28 (1): 266266.

AbstractMost randomized controlled studies on nutrition in intensive care patients did not yield conclusive results or were neutral or negative concerning the primary endpoints but also in most secondary endpoints. However, there is a consistent observation that in several of these studies there was a negative effect of the nutrition intervention on the kidneys in one of the study arms. During the early phase and in unstable periods during further course of disease an inadequate clinical nutrition can damage the kidneys, can elicit or aggravate acute kidney injury and/ or increase requirements of renal replacement therapy (RRT). This relates to total energy intake, glucose intake/hyperglycemia and protein/ amino acid intake at various stages of renal dysfunction. The kidney could present a critical organ system for guiding nutrition therapy, a close monitoring of kidney function should be observed and nutrition therapy may need to be adapted accordingly. The long-held dogma of performing full nutrition and accept an otherwise not necessary RRT is definitely to be refuted.© 2024. The Author(s).

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