Protein requirement in critical illness.

Area of Science:

• Critical Care Medicine
• Clinical Nutrition
• Metabolic Response to Injury

Background:

• Historically, a consensus supported high protein intake for critically ill patients.
• Emerging research questions the necessity of high macronutrient provision in early critical illness.
• Conflicting recommendations necessitate a review of current evidence.

Purpose of the Study:

• To review the rationale for generous protein provision in critical illness.
• To analyze clinical trials challenging the high protein requirement.
• To provide recommendations for clinical practice and future research.

Main Methods:

• Literature review of historical recommendations and recent clinical trials.
• Analysis of studies investigating macronutrient intake in critical illness.
• Synthesis of evidence to address conflicting viewpoints.

Main Results:

• The review details the established basis for high protein requirements.
• Analysis reveals potential limitations or alternative interpretations of recent trials.
• Evidence supports continued consideration of adequate protein delivery.

Conclusions:

• The longstanding recommendation for ample protein in critical illness remains relevant.
• Further clinical investigation is needed to refine optimal macronutrient strategies.
• Clinical practice should carefully consider individual patient needs for protein.