Tako:
Diet coke causes the biggest reaction with mentos, but normal coke is totally fine too. You could also use other sodas, but they aren't as effective. (videos on yt show it) A positive point of diet coke is the lack of sugar. If you overdue it with normal coke you could get dizy.
You also have to use the normal mentos, not the flavoured, coloured ones. That won't work.
As for the process: You can do it however you want it. I'd recommend to drink the coke first and then swallow some whole mentos (not chewed). You could also do it in waves. Drink a bit. Then swallow one or two and repeat.
As for danger: The only real ''danger'' would be the overload of sugar by drinking like 2 litres of coke in a short period of time.
The thing is, that you can easily and at every moment deflate by burping. So if it hurts or you just wanna stop: burp. So you can't really hurt yourself that way. Just listen to your body.
nearly missed that: For this type of bloat you of course must hold in the air and hold back the burps for as long as you want the bloat to last.
PS: Just be careful! This bloat actually increases your stomach capacity like hell.🤣
It increases it, for like, forever?