Abstract
<jats:p>Intensive care units (ICUs) are defined by the Intensive Care Society as specialist hospital wards that provide treatment and monitoring for people who are very ill. These patients often require close observation and intervention due to severe illness, injury or complex medical conditions. ICUs are staffed by healthcare professionals from varying disciplines, including medical staff, nurses, physiotherapists, pharmacists and dietitians. They work closely as a multidisciplinary team to provide comprehensive, holistic care to critically ill patients. Critical illness leads to life‐threatening organ dysfunction requiring advanced organ support techniques. In the critically unwell, nutrition therapy has a central role in improving wound healing, decreasing catabolic response, preserving gastrointestinal structure and function and, consequently, improving clinical outcomes. Appropriate monitoring and review of any patient receiving nutritional therapy is a crucial step of the dietetic intervention.</jats:p>