I had heard somewhere (sorry, too lazy to try and find a source right now — maybe someone else can) that some researchers suspect that fruit carries phytochemic

I had heard somewhere (sorry, too lazy to try and find a source right now — maybe someone else can) that some researchers suspect that fruit carries phytochemicals which signal to the body that sugar is on the way. Idea being that these signals might have an anti diabetic effect — e.g., change the insulin response to the sugar. I have no idea if there’s any validity to this, but it sounded plausible. [edit: it would make some sense, since we evolved alongside fruit.] Would love to hear if anyone else knows more about it.