Your body works on a sodium-potassium exchange; It is estimated that you need a minimum of 500mg per day. The problem is the processed salt added to processed foods. So if your diet is clean and free of processed rubbish, adding salt can be a necessity.
Salt and fat will bloat you, but simple sea salt added to food can, in fact, prevent a heart attack. If your sodium intake is too low, your sodium potassium balance will be wrong and this can lead to heart failure.
Ever wondered why eggs or oatmeal taste so bad without salt- They’re both really high in potassium. Your taste buds are trying to tell you something.