It's more about the amount you have than, rather than which one. BUT extra strong's are a no-no. Lower alcohol's are best.

It's too complex to explain here...you need to read from diabetes UK what alcohol ( particularly large quantities) does to your blood levels - the carbs in alcohol are no substitute for food carbs. they send the blood sugar levels down (after an initial high) after a certain length of time - resulting in a hypo. The more alcohol the more severe the potential hypo.

Therefore NEVER EVER drink without food. Hope this helps.