Since he stopped eating any processed foods, he also dropped a ton of added sugar and HFCS from his diet as well as an alphabetical list of food additives. He was likely also getting more magnesium as well as more potassium in his amended diet.So you switched from a meat diet to vegetarian and concluded it was salt?
That said, though, there are some people (a small subset) whose blood pressure does seem to be quite salt-sensitive. Just another example of one rigid set of dietary rules never has and never will fit every individual. Keeping blood pressure below the dangerous level is the goal. I say whatever works for somebody, as long as it works.