I've read a lot of studies as far as cannabis and blood sugar goes.

When scientists first started doing studies on cannabis, it was widely believes that cannabis brought on low blood sugar which caused the munchies.

It's been concluded for years and years that "munchies" don't work this way.

"endocannabinoids for short, which work like neurotransmitters are produced as part of the built-in apparatus by which peripheral parts of the body inform the brain that it's lunchtime. Endocannabinoids and cannabinoid receptors are abundant in the hypothalamus, the region of the brain that plays a pivotal role in appetite regulation."

If you want me to break it down into simple-ese, than I can.