Refeeding Syndrome Risk Assessment

Assess refeeding syndrome risk before initiating nutrition in at-risk patients. High-risk features (any 2 minor or 1 major): BMI below 16, unintentional weight loss above 15% in 3-6 months, minimal intake above 10 days, low baseline phosphate/potassium/magnesium. High risk requires thiamine supplementation, electrolyte monitoring, and slow caloric advancement (10-20 kcal/kg/day initially).

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 to Use

Enter the values for the scenario you are assessing. Assess refeeding syndrome risk before initiating nutrition in at-risk patients. High-risk features (any 2 minor or 1 major): BMI below 16, unintentional weight loss above 15% in 3-6 months, minimal intake above 10 days, low baseline phosphate/potassium/magnesium. High risk requires thiamine supplementation, electrolyte monitoring, and slow caloric advancement (10-20 kcal/kg/day initially). Use the refeeding risk result to inform your calculation.

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Frequently Asked Questions