So far, I'm talking to her about:
Ditching the statin (I can only hope)
Ditching the Prilosec and get the GERD under control (which she is already considering)
Checking her zinc levels
Cancer screening (especially the digestive tract)
Checking for calcium carbonate in her muti-vitamin
I'll go back through all of your ideas and see if I missed anything, and if you think of anything else, let me know!