[devmor]

I have no idea if this might be related, but citric acid is known to speed up mixed absorption of non-protein sources by inhibiting proteolytic enzymes in the digestive tract (it is even used in some medicines that require faster absorption because of this).

To that effect, perhaps the glucose in OJ is absorbed faster than the glucose in other SSBs specifically when consumed with other foods, leading to this anecdotal understanding that OJ is "worse" than other SSBs among diabetics?