MUST Score Calculator

Malnutrition Universal Screening Tool for adults to identify adults who are malnourished or at risk.

Step 1: BMI Score

Step 2: Unplanned Weight Loss (Past 3-6 Months)

Step 3: Acute Disease Effect

Total MUST Score

0pts

Low Risk

Routine clinical care. Repeat screening.

Reviewed by the CareCalculus Clinical Team·MD, ICU & Emergency Medicine specialists·Updated 2026

Clinical Implications

The MUST score is a 5-step screening tool to identify adults, who are malnourished, at risk of malnutrition (undernutrition), or obese.

References: Malnutrition Advisory Group (MAG) of BAPEN.

What is MUST?

The Malnutrition Universal Screening Tool (MUST) is a validated tool to identify adults who are malnourished or at risk of malnutrition.

Who should be screened with MUST?

It is recommended for all adults upon admission to hospitals, care homes, and in the community.

What happens if a patient is high risk?

A score of 2 or more indicates high risk. A dietitian should be involved, and a formal nutritional care plan must be initiated to improve outcomes.