I consume up to 30 oranges a day when in season and often drink a quart of pure juice at a time through out the year and rarely if ever drink water, my kids rarely drink water. Only on this forum I have read where a few people have sensitive teethe and blame it on the fruit juice, they believe the fruit juice is some how eating their teethe up. One so called famous person used this excuse in a court of law, his name was OJ and blamed the orange juice he drank in commericals as a reason he was too sickly to have killed his wife.
I do not know about people who drink pure juice on 1/2 full stomachs of food, with these they will get no benefit from drinking juice, unless they have alkaline stomachs and feel zero pains when they consume juice anytime of the day under any condition.
Now it would seem reasonable that people swallow their own saliva after they have a glass of juice and their saliva gets more alkaline as they drink more juice. Those that don't consume fruits has a less than alkaline saliva and their teeth are dissolving 24/7.
The use of pH paper tells the true story, if your pH is low, sorry, your teethe and bones are being peeed down the toilet. Blame this on raw fruit juice????? I doubt it, the odds are there are plenty of acid forming foods being consumed and the juice is being mixed with foods that are not compatable.