REVIEW ARTICLEMortality and Length of Stay in Critically Ill Patients With Low Muscle Mass A ReviewWedemire, Courtney BSc, RD; Rigassio Radler, Diane PhD, RD; Zelig, Rena DCN, RDN, CDCES, CSG Author Information Department of Clinical and Preventive Nutrition Sciences, School of Health Professions at Rutgers University, Newark, New Jersey (Ms Wedemire and Drs Rigassio Radler and Zelig); and Abbotsford Regional Hospital, Fraser Health Authority, Abbotsford, British Columbia, Canada (Ms Wedemire). Correspondence: Courtney Wedemire, BSc, RD, Abbotsford Regional Hospital, 32900 Marshall Rd, Abbotsford, BC V2S 0C2, Canada ([email protected]). Courtney Wedemire is a critical care registered dietitian from Abbotsford Regional Hospital in British Columbia, Canada, and is currently enrolled in the Master of Science in Clinical Nutrition Program at the School of Health Professions' Department of Clinical and Preventive Nutrition Sciences at Rutgers University. The authors have disclosed that they have no significant relationships with, or financial interest in, any commercial companies pertaining to this article. Topics in Clinical Nutrition: April/June 2022 - Volume 37 - Issue 2 - p 166-183 doi: 10.1097/TIN.0000000000000270 Buy Metrics Abstract In critical care, low muscle mass is proposed as a risk factor for adverse outcomes that may be modified by nutrition. However, health care providers, including physicians and registered dietitians, may not routinely consider this risk factor in screening, assessing, or designing interventions. A literature search was conducted to compare clinical outcomes in critically ill adult patients with and without low muscle mass upon admission. This narrative review identified a statistically significant association between low muscle mass and increased risk of mortality and length of stay. Health care providers should consider screening for low muscle mass upon admission, as this may inform practice and improve clinical outcomes. © 2022 Wolters Kluwer Health, Inc. All rights reserved.