While I’m no expert, that doesn’t sound correct to me. I’d expect highly specific binding dependent on the chemical structure of glucose would be required to elevate insulin. A quick search seems to support that. I’m sure there are lots of studies on this that you could find if interested.
Love Jackdaws. Here’s an evening display flight.
https://youtube.com/shorts/5O251N4Rm0o?si=Un5CkefUhXVBqulm