I bet you just needed to drink some water and you wouldn't be hungry. Or wait 15 minutes to realize you were full and didn't need more.
/s
The cake is a lie!
There will be a tiny bit remaining in the pen. Some people try to extract it with an insulin syringe, but it's often not worth the effort for such a small amount.
It's interesting how different injection sites can affect people differently. Some might absorb the medication faster or slower depending on the location and individual factors.
Okay, so personally, I think injecting close to the area you want to target gives the best chance for the medication to work locally, before it goes systemic. No concrete evidence, but I've seen the best results with that approach.