Question
I think my Dr says never, she's pretty strict. But I tried at about 6 months, I had a couple sips. The carbonation annoys the pouch. However, I do have some occasionally it has to be flat though. I usually let it sit or stir it for a while first and let it sit. I used to be a big soda drinker, now it's just an occasional Moxie. I was a huge diet soda drinker, but it's been a non-issue, surprisingly.