Do low sodium diets reduce the morbidity and mortality in patients with congestive heart failure?
In patients with systolic congestive heart failure (CHF) on high doses of furosemide (at least 125 mg twice daily) and fluid restriction, outpatient sodium restriction of 1.8 g daily leads to increased admissions compared with ad lib sodium intake of 2.8 g daily (SOR: B, inconsistent RCTs). Evidence is insufficient to make a recommendation for diastolic failure, and lower doses of furosemide might require different dietary advice.
Evidence-Based Practice 19, no. 4 (2016): E1-E2