First of all congrats on weight loss thats not an easy thing to do.
I don't know for sure if it makes a lot of differance or not to high blood pressure, but for many years i haven't used regular salt, i have been using a product over here called " Lite salt ", even when i first got PN i was overweight but still my blood pressure only went up a tiny bit, no were near enough to take any meds for it, as soon as i lost the weight it went back to perfect, well thats what my doc keeps on saying anyway.

I was classified as pre diabetic when the PN thing started up, my neuro said it was the cause of it, he said keep right away from any high sugary carbs and you will eventually reverse the damage, i done what he said and he was spot on, i have read that its the the same deal with diabetic people with PN it can be reversed if you do all the right things, so you would think that by keeping a tight control on your blood sugars, it should make a big POSITIVE differance to the outcome of your PN, i hope so anyway
Brian