Laboratory findings revealed normal anion gap, hyperchloremic metabolic acidosis, fasting hypoglycemia, and post-feeding hyperglycemia, hypokalemia, hypomagnesemia hypophosphatemia, elevated hepatic transaminases (ATS/ALT), proteinuria, glucosuria, hyperphosphaturia, and non-specific aminoaciduria. The gene discussed is GPT; the disease is familial primary hypomagnesemia.