Swallowing/Regurgitating Cigarettes - Is This Possible?

[tr0nic]

I'm certain this has been discussed on the original site at some point, but I want to open the floor to the topic again.

Kojima has no issue stretching reality to fit his universe, but how possible is it for someone to SWALLOW an entire pack of cigarettes, and then tactically regurgitate them??

Naomi tells Snake that he's been given medication to suppress his gastrointestinal juices--Effectively preventing the pack from being digested. It's well-known that cigarettes are not good for you if eaten, search engine results claim that vomiting and a possible fever is almost guaranteed.

The biggest piece to this puzzle is the item icon ingame:


Snake did not just swallow a handful of cigarettes--They are IN A PACK. So that prevents the stomach from absorbing chemicals from the cigarettes themselves, I guess (?). But how did this man swallow an entire pack of cigarettes? Judging by the one sticking out of the pack in the icon, this is a soft pack rather than a hard pack. Soft packs are essentially just a paper wrapping, rather than a cardboard box. That said, soft packs are practically the same dimensions as a hard pack. How many cigarettes were in there?? Snake is never actually shown finishing one ingame, so either he's smoking the same four or five butts and putting them out or we as the player are just given an unlimited supply. 

Is this possible for some special forces badass? Is Snake just the throat goat??

I don't know why I am making this thread.