Jay, my question is, is ANY carbonated water regarded as having a detrimental effect on my Glucose? I drink Carbonated Peroni.
I reside in the UK.
I don't believe carbonation matters, it's really the sugar or caffeine. A lot of zero sugar carbonated drinks still contain caffeine and caffeine raises cortisol levels which further raises blood glucose. I believe simple carbonated waters are fine, even flavored ones, just read the label to know if there are any added sugars or caffeine.
This actually brings me to a thought I've had about caffeine. Some advice states coffee is bad for blood sugar levels. Some advice states coffee is good for diabetes overall. Seems conflicting but I am starting to believe that even though coffee temporarily boosts blood sugar levels, that will only happen if you have too many stored sugars in your body. Which means that if you are not eating your sugars then the only way the glucose levels are being raised by drinking caffeine is because they are being cracked out of your storage. In the short term, when trying to bring levels down, this may seem bad as your average levels blood test (A1C) will take longer to bring down but overall it might seem to be a good think as it helps quicken the the burning of stored glucose (i.e. fatty liver) and help your body over a period of time, along with low carb eating, to switch to ketones for energy. This will in turn result in lower morning fasting levels and improve insulin resistance.
This last blurb is just a hypothesis of mine, not scientific, but I have an engineering mind and thinking it through logically it seems to make sense.