I am still addicted to caffeine, but the doctor told me to ease off due to suspected ulcers, so I experimented with various teas made from homegrown vegetables/herbs. The easiest combo so far that I have found is pandanus leaf and krathom, which is now legal.
I also use the flowers of butterfly pea, ginger, galangal, tumeric and cinnamon.
I used to throw in a chili, but the doc told me to cut that out too.
I also sprinkle in some salt, not for the taste but because I have low sodium levels, the doc found.