The interaction index compares the share of total beverage spending switching from each category to pre- and probiotic sodas with what would be expected if all categories contributed equally (fair share). An index above 100 indicates a disproportionately high switching rate from that category. In 2025, kombucha (***) and refrigerated beverages (***) had the highest interaction, indicating strong competition and overlap.
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Numerator. (June 30, 2025). Interaction index with prebiotic & probiotic sodas in the U.S. in 2025, by beverage type [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 25, 2026, from /statistics/1619786/interaction-with-pre-probiotic-sodas-in-the-us-by-beverage/
Numerator. "Interaction index with prebiotic & probiotic sodas in the U.S. in 2025, by beverage type." Chart. June 30, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 25, 2026. /statistics/1619786/interaction-with-pre-probiotic-sodas-in-the-us-by-beverage/
Numerator. (2025). Interaction index with prebiotic & probiotic sodas in the U.S. in 2025, by beverage type. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 25, 2026. /statistics/1619786/interaction-with-pre-probiotic-sodas-in-the-us-by-beverage/
Numerator. "Interaction Index with Prebiotic & Probiotic Sodas in The U.S. in 2025, by Beverage Type." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Jun 2025, /statistics/1619786/interaction-with-pre-probiotic-sodas-in-the-us-by-beverage/
Numerator, Interaction index with prebiotic & probiotic sodas in the U.S. in 2025, by beverage type ÌÇÐÄÆƽâ°æ, /statistics/1619786/interaction-with-pre-probiotic-sodas-in-the-us-by-beverage/ (last visited July 25, 2026)
Interaction index with prebiotic & probiotic sodas in the U.S. in 2025, by beverage type [Graph], Numerator, June 30, 2025. [Online]. Available: /statistics/1619786/interaction-with-pre-probiotic-sodas-in-the-us-by-beverage/
