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by professorgerm 2785 days ago
According to CNN[1] and a scientist in Scotland- yes! It hydrates pretty much equally, though it's slightly worse for your teeth. Not nearly as bad as regular soda/pop/etc, though.

Missed the second part. The article doesn't address it, but from my knowledge flavoring shouldn't affect the hydration unless the flavor includes other components like sugar/acid/salts/caffeine/etc.

[1]: https://www.cnn.com/2018/07/19/health/sparkling-water-hydrat...