I had slipped into the habit of putting salt on my food.... I've stopped now obviously

I have stomach issues and oral lichen planus which both mean I can not eat anything acidy such as tomatoes, citrus or vinegar, or spiced or strong flavour foods,or high fat. I guess I was just giving my somewhat bland diet a bit of taste by adding salt.
I have been reading about isometric exercise. It may help lower blood pressure, so I have started using a hand grip. Sounds very far fetched, but worth a try. And during my gym induction my grip was tested and found to be weak.
I've upped my walking and have restarted meditation.
Today my BP is slightly lower
