It’s really no different than water. The carbonation will make you burp, but otherwise, it’s equivalent.
Now some mineral waters can cause problem. The naturally carbonated spring water in Saratoga Springs, NY, contains radium, so there is a recommended maximum. The water directly from five of the seven springs has too much radium to be sold commercially.
The Saratoga water in the blue bottles and sold in supermarkets comes from a different spring that doesn’t have radium.
Do check the nutritional information for your water of choice, though. There could be some trace nutrients (like sodium or calcium). It’s not likely that there would be enough to affect you negatively, but things can add up if you’re drinking a lot of that brand.
The only people I know insisting that carbonated water is bad are the fanatics selling $5000 machines to make your water more alkaline.
Well, two different ex-gfs, one with whom I’m still friends, have warned me that consuming too much LaCroix like I do lately is… somehow unhealthy. The specifics are always vague. I would have forgotten their admonitions until a guy I met told me a story of massive early-years soda consumption that led to a serious intestinal disorder, among other problems. Maybe it was the carbonation?
But, I’m just drinking LaCroix. The question isn’t about radium, or dilutional hyponatremia, or trace elements. Sure, if LaCroix is laced with poison, someone please tell me, but I want to know if plain ol’ carbonated water poses a health risk. Everyone seems to be saying it doesn’t- is there any hard proof one way or the other?
The friendly ex-gf is a long-term vegan who says, “I prefer my water to be still.” She knows A Lot about food. Does she have some insight into carbonation?
Edit: @Qadgop.
go to my earlier link and look at the other articles linked to there. Dozens of papers looking at various facets, none with anything definitive about dangers from carbonated waters.
I don’t want to say anything bad about your ex-gf, as I don’t know her, and she may be a very knowledgeable and reasonable person, but in general, 95% of people who know A Lot about food actually know A Lot about their own pet theories of food.