This book discusses practical topics in critical care nutrition including basic principles and practices in nutrition support in the ICU. Tailoring nutrition solutions is crucial for the development and prognosis of critical illness and this is why this text, written by internationally well-known experts in the field, provides useful examples from everyday clinical practice: When to start enteral/parenteral nutrition? Which composition and formulation is indicated? What to consider in cases of liver or kidney failure, sepsis, neonatal intensive care? Therefore, it represents a useful guide for all healthcare professionals in this area, such as physicians, nurses, and dietitians.