Effects & SymptomsRefeeding SyndromeA dangerous shift in fluids and electrolytes that can occur when reintroducing food after prolonged fasting. It's best managed with medical supervision. Related Terms ElectrolytesNUTRITION & SUPPLEMENTS Hunger WallEFFECTS & SYMPTOMS Keto Flu (Fasting Flu)EFFECTS & SYMPTOMS KetoacidosisEFFECTS & SYMPTOMS