Gitelman’s syndrome is a primary renal tubular disorder characterized by chronic hypokalemia, hypomagnesemia, metabolic alkalosis of renal origin, hypocalciuria with normocalcemia, hyperreninemic hyperaldosteronism, increased excretion of urinary prostaglandins and hyperplasia of juxtaglomerular pparatuson renal pathology. It is a rather benign condition not uncommonly detected in asymptomatic adults because of unexplained hypokalemia. This condition has been frequently mistaken for chronic dichlozid use. We have experienced a case of Gitelman’s syndrome in a 41-year old woman taking diuretics for the purpose of weight reduction.