MUST Nutritional Screening Tool

Screen for malnutrition in community and hospital using MUST (Malnutrition Universal Screening Tool). Combines BMI, weight loss, and acute disease effect. Score 0: low risk; 1: medium risk; >= 2: high risk.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Screen for malnutrition in community and hospital using MUST (Malnutrition Universal Screening Tool). Combines BMI, weight loss, and acute disease effect. Score 0: low risk; 1: medium risk; >= 2: high risk

Each component has a specific meaning:

  • MUST — The must recorded for the scenario being assessed.

Note: Interpret the must screening result against the thresholds and context described above.

How to Use

Enter the MUST for the scenario you are assessing. Screen for malnutrition in community and hospital using MUST (Malnutrition Universal Screening Tool). Combines BMI, weight loss, and acute disease effect. Score 0: low risk; 1: medium risk; >= 2: high risk. Use the must screening result to inform your calculation.

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Frequently Asked Questions