nitrogen has much lower solubility in water than carbon dioxide, so it will be much less volume at any rate
No, it barely has any carbonation at all.
carbonation
ಠ_ಠ
The majority of the air you exhale is Nitrogen. Guinness has CO2 dissolved in it not Nitrogen. It will make no difference to the amount of Nitrogen you exhale.
Sorry Bud, Guinness is nitro.
Even then I highly doubt it's make an appreciable difference.
Nitrogen doesn't dissolve in the beer though like CO2 does.
nitrogen has much lower solubility in water than carbon dioxide, so it will be much less volume at any rate