Refeeding risk: ward safety ⚠️ 💧

Refeeding risk: ward safety ⚠️ 💧

Why it is dangerous

After starvation, carbohydrate exposure drives insulin secretion and uptake of phosphate, potassium and magnesium into cells. Severe depletion may cause arrhythmias, weakness, respiratory failure and neurological complications.

Identify risk before starting nutrition

• Screen for low BMI, recent weight loss, poor intake, alcohol use and baseline electrolyte abnormalities. NICE CG32 high-risk criteria include BMI below 16, minimal intake for more than 10 days, significant weight loss, or low phosphate/potassium/magnesium; combinations of lesser risk factors also qualify.
• Check phosphate, magnesium, potassium, glucose and fluid status; obtain nutrition/dietetics and senior review for high-risk patients.

Act and reassess

• Use a staged nutrition plan with prophylactic thiamine and other vitamins/electrolytes according to NICE and the local nutrition protocol; do not prescribe an aggressive one-size-fits-all feeding target.
• Monitor electrolytes and clinical status closely after feeding starts, typically daily initially in high-risk people, adjusting treatment with the nutrition team.
• Watch for fluid overload, new tachycardia, weakness, respiratory symptoms, confusion or ECG change; treat these as deterioration requiring urgent review.

UK sources (checked 4 Nov 2026): NICE CG32: nutrition support and refeeding risk

Clinical safety: educational editorial draft, not an authorised NHS prescribing order. Clinical/pharmacy sign-off pending. Check local policies, BNF/BNFC, up-to-date guidance and individual patient factors before any treatment.