Quick answer
Both are Level 1 with identical ingredient lists: carbonated water and natural flavors. There is no meaningful processing difference. Both are among the least processed beverages available commercially, aside from plain water.
Processing levels can vary significantly between brands and specific products within each category. Always check the ingredient list of the specific product you are considering. Use our product search to look up exact processing scores. These comparisons evaluate processing level and ingredient composition only. They do not account for taste, price, convenience, cultural significance, or individual dietary needs.
How do they compare by the numbers?
Sample products from each
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Frequently asked questions
What are the "natural flavors" in sparkling water?
Both La Croix and Bubly use essence oils extracted from fruit rinds or pulp. These are distilled flavor compounds classified as "natural flavors" by the FDA. No sugar, sweeteners, sodium, or calories are added. The exact blends are proprietary but the processing is minimal.
Is sparkling water as healthy as still water?
From a processing standpoint, the only difference is dissolved carbon dioxide (carbonation). Flavored sparkling waters like La Croix and Bubly add natural flavor essences but no sugar or additives. Both are Level 1 and functionally equivalent to water for processing purposes.