Consuming fructose in liquid form, such as apple juice, can lead to a slower absorption rate of glucose compared to whole apples, potentially resulting in minimal insulin release.

“But the difference between liquid form, apple and apple juice is, as you say, the area in the curve is the same. But the fact that the glucose isn't going up as high means you don't get as much insulin release. And of course, if digested very slowly, the rate at which you're ambiently burning glucose in your brain and muscle may be almost equal to the rate at which it gets absorbed in the bloodstream, in which case you hardly see any increase at all. And that means no spike in insulin whatsoever.”