With the advent of refrigeration, we need salt less than ever. The problem is that brands have used it to gain a comercial advantage, to the point where if we eat some processed food and dont add any extra salt, we are already exceeding the daily recommended limit.
The link between salt and hypertension is well known by the general public, but less well know is that salt is a major cause of stomach cancer.
There is just so much salt hidden in everyday food, that we are not even aware of.
Yet, its possible to do a very salty tasting soup just by using carrot juice or celery as the base instead of water, as those vegetables are relatively high in sodium.
You taste it and could swear that the soup was salted, when there is no added salt.