I eat very little fruit, a little blueberries or watermelon a couple times a week at the most. I tried potatoes (what else for Chanukah!) and felt badly afterwards. I have rice a couple times a week, but not daily.
I read last week online, don’t recall where, that the sore throat associated with LPR may not be due to LPR, but just normal, tiny amounts of acid that the throat nerves have become highly sensitive to as a result of prior LPR. So I’m not concerned about it, and am grateful to feel so much better most of the time.