Condition Basics

What is refeeding syndrome?

Refeeding syndrome is a problem that may happen when nutrition is given after a period of not eating or not eating enough. It causes electrolyte changes and fluid shifts. This can lead to organ problems. The condition can be severe and life-threatening. It can happen with conditions such as anorexia nervosa and cancer.

What are the symptoms?

Symptoms can include:

• Nausea and vomiting.
• Tingling that feels like "pins and needles."
• Swelling in your legs (edema).
• Weakness.
• Confusion.
• Low blood pressure.
• Seizures.
• A change in the normal rhythm of the heart (arrhythmia).
• Breathing problems and sometimes respiratory failure.

How is it treated?

You'll be watched closely by your care team. Because refeeding syndrome can be dangerous, it's treated in a hospital. You'll likely be given extra vitamins and electrolytes through a tube in your vein (I.V.). Nutrition is increased slowly. You may get nutrition by eating, through a feeding tube, or through an I.V.