What is Refeeding Syndrome?

The syndrome was formally documented in the mid-20th century, notably in survivors of concentration camps and famine victims. These observations led to the development of modern clinical protocols for refeeding.

Clinical settings include patients with anorexia nervosa, chronic alcoholism, or those recovering from prolonged fasting or malabsorption syndromes.

Refeeding syndrome is characterized by severe electrolyte and fluid shifts in malnourished patients undergoing nutritional rehabilitation. It is a complex clinical complication that can lead to cardiac, respiratory, and neurological failure.

It serves as a critical reminder of the importance of clinical nutrition. It highlights that the metabolic state of a patient must be assessed before initiating aggressive caloric intake.

When a starved body receives carbohydrates, insulin secretion increases. This triggers the uptake of phosphate, potassium, and magnesium into cells. This rapid shift depletes serum levels, leading to hypophosphatemia, which impairs cellular energy production (ATP) and can cause organ failure.