Did lots of low-sodium cooking during hubby's illness.   Bread definitely is a culprit, and classic foods which rely on salt for flavor. Had to start making our own bread, and focus on flavorful things which don't rely on salt so much. It also helped to get plenty of potassium in the diet.

But, if you're 'normal' I can't see making a big deal out of it, except the usual need to be careful around over-processed, over-salted foods. Seems to me that an attempt to 'eat clean' will often take care of the excess sodium problem in itself.

SRS, this year I did some field collecting in the Chocolate Mountains near Yuma, and some near Deming but not at Rockhound Park; one can almost never get a site there any more since online reservations are a thing. But also acquired quite a few pieces at meetings and conferences of micro-mineral collectors. There is a lot of free and $1 stuff to be had by simply showing up and participating.