Refeeding syndrome is a dangerous and life threatening shift of fluids and body salts (electrolytes) that can occur when malnourished patients receive treatment with refeeding. These shifts cause serious complications such as low body phosphate, abnormal sodium and fluid balance, changes in glucose, protein, and fat metabolism, low vitamin levels, particularly thiamine (vitamin B1), low potassium and low magnesium.
This is a companion discussion topic for the original article at https://patient.info/healthy-living/refeeding-syndrome