‘MUST’ is a five-step screening tool to identify adults, who are malnourished, at risk of malnutrition, or obese. It also includes management guidelines which can be used to develop a care plan. The tool is being used both in hospitals and in the community. It is easy to use and can be used by all care workers.

Full details of this tool can be found at the following:

Calculate Risk

Use the form below to estimate the risk of malnutrition. Please note that the figures entered for weight must be in kilograms or stones & pounds and the figure entered for height must be in centimetres or feet & inches. Ideally, use metric measurements as no conversion needs to be done.


Current weight (Kg)
Current height (cms)
Previous healthy weight*
Is the patient acutely ill and there has been or is likely to be no nutritional intake for >5 days?



* This is the patients' weight when they were healthy, or the weight prior to any unplanned weight loss in the last 3-6 months.