Focus on Heart Failure: The Food Prescription Approach to Treating Disease with Food

Most foods contain a small amount of sodium. This includes fresh fruits, vegetables, meats, and seafood. We need sodium to live, but most people take in more than they need.Salt attracts fluid. Eating too much sodium can increase your blood pressure. Excess sodium also causes the body to retain extra fluid (edema), which makes your heart work harder.The usual limits for a sodium-restricted diet are between 1,500 and 2,000 milligrams (mg) per day. Your doctor will tell you the exact amount you can have. This amount cannot be “saved” over several days – it is the amount you can have in one day. Your doctor may change this limit based on your specific needs.

https://my.clevelandclinic.org/departments/heart/patient-education/recovery-care/heart-failure/diet