Although salt and water retention plays a crucial role in heart failure (HF) pathophysiology, controversy still exists about dietary salt restriction in the treatment of HF patients. Small clinical studies have suggested that excessive sodium restriction (< 5 g of salt per day), as compared with normal-sodium diet (approximately 7 g of salt per day), may be associated with deleterious effects in patients with chronic HF, including increased neurohormonal activation, and higher hospitalization and mortality rates., A recent meta-analysis of [...]