Refeeding syndrome is a condition that can occur when a person who is malnourished or has been fasting for an extended period begins to eat again. There are a few different ways to refer to this condition, including "refeeding edema" and "refeeding hypophosphatemia." Refeeding edema describes the buildup of fluid in the body, while refeeding hypophosphatemia refers to low levels of phosphate in the blood, which can lead to weakness, confusion, and even death. Other potential synonyms for refeeding syndrome include "starvation syndrome" and "metabolic derangement." Regardless of the terminology used, it is critical to recognize the signs and symptoms of refeeding syndrome and seek medical attention immediately if they are present.