The best testimony I have is a woman with severe water retention, also 30 kilos of extra weight (gone by the way after iodin et al) She avoided salt at all costs.
I put her on the himalaya salt; this was before Iodine by the way; she had a brain fog; and mistaked 1 teaspoon of salt per liter of water with 1 table spoon..
After 3 weeks of 2 tablespoons of salt daily she realized her mistake; and asked me if something was wrong: her wedding ring was falling off!
After that I have salted my cases well; especially those with water retention. Only exception is if they are on a bad diet with high (table)salt-sugar-refined food etc.
Then the diet have to be corrected before real salt is added.