The Gut Health Bet That Is Remaking the Soda Aisle

For most of the past two decades, the story of soda in America was one of steady, unglamorous decline. Consumption fell. Diet variants lost their footing as artificial sweeteners fell out of favor. The category’s biggest names held their positions largely through pricing power and distribution muscle, not through meaningful product innovation. Then two small brands figured out how to make soda feel like something worth choosing again.

Olipop and poppi didn’t revive interest in soda by making it healthier in a generic sense. They did it by making gut health tangible, accessible, and enjoyable enough that people actually bought a second can. By centering their formulas on prebiotic fiber and positioning their products as sodas for people who had already moved on from soda, they built a subcategory that the established beverage industry spent years watching from the sidelines. By the time Circana measured the modern soda subcategory at $1.8 billion, according to CNN’s July 2025 reporting on the Pepsi Prebiotic Cola launch, the sidelines were no longer a tenable position.

To put that number in context: Mintel’s director of Americas food and drink, Paige Leyden, reported in Beverage Industry’s April 2025 issue that the U.S. carbonated soft drink category reached an estimated $55.2 billion in 2024. Prebiotic soda represents roughly three cents of every dollar spent there. What makes the story worth telling is not the market share. It is what that three cents caused two of the largest consumer goods companies in the world to do.

When a Small Subcategory Forces the Hand of Giants

Both PepsiCo and Coca-Cola moved into the prebiotic soda space in early 2025, arriving by different routes and at nearly the same moment. Coca-Cola launched Simply Pop in February 2025 under its existing Simply juice brand. PepsiCo announced its $1.95 billion acquisition of poppi the following month, a deal that closed in May. The near-simultaneous timing suggests both companies had been watching the same consumer data and reached similar conclusions independently, rather than one triggering the other.

The strategic philosophies behind the two moves diverged meaningfully. As Food Dive noted in its reporting on the competitive dynamic, PepsiCo purchased proven brand equity and a consumer base it had been unable to build organically. Coca-Cola retained full ownership of its innovation and kept the development inside a trusted product family. That both companies arrived at the same destination through different roads says something about how seriously gut health positioning is now being taken at the executive level of the industry.

The poppi acquisition was also notable for what it revealed about PepsiCo’s confidence in its own innovation capacity. The company had previously developed a functional soda concept under the Soulboost brand name, but according to CNBC, those plans were shelved after indications the product wouldn’t succeed in market. Rather than build again from scratch, PepsiCo bought the leader outright.

Olipop, which has not been acquired, reached a valuation of approximately $1.8 billion following a funding round led by J.P. Morgan Private Capital, according to Marketplace’s March 2025 reporting. The company conducted an at-home clinical pilot study in 2025 examining how its Vintage Cola affected blood sugar response compared to traditional cola, a sign that the leading independents are investing in science-forward communication as competitive pressure from legacy brands increases.

The Numbers Behind the Shift

The broader functional beverage category provides useful context for understanding why prebiotic soda has attracted this level of attention. Grand View Research estimated the global functional drinks category at approximately $164.7 billion in 2025, growing at a compound annual rate of 8.5 percent through 2033. North America accounted for roughly 35 percent of that total in 2025, according to the same research.

Within carbonated soft drinks specifically, Mintel’s tracking shows consumer appetite for function is real and measurable. Roughly 32 percent of consumers express interest in functional CSD innovations, and 58 percent say they are willing to pay more for healthier alternatives, according to Mintel findings reported in Beverage Industry’s April 2025 issue. Those numbers help explain how a product concept that sounds counterintuitive on its face achieved the kind of commercial momentum that prompted billion-dollar responses from the industry’s two dominant players.

Mintel’s data on product launches tells a parallel story. In 2020, only one percent of new beverage releases carried gut health claims. By 2025, that figure had risen to five percent, the highest share on record, according to Mintel analyst commentary published in Beverage Industry. Circana’s tracking of the better-for-you soda space, as reported by Beverage Daily, documented double-digit annual growth for products carrying prebiotic fiber, botanical blends, and low-sugar formulations, outpacing traditional diet sodas by a meaningful margin, driven in large part by Millennials and Gen Z trading traditional sweetened sodas for products aligned with their wellness priorities.

Online gut health conversations grew 15 percent in the period covered by Black Swan Data’s analysis, as cited in Beverage Industry, with consumers increasingly framing beverage choices around how they want to look, feel, and perform.

Poppi’s Path, and What It Proved

The story of poppi is one of the more instructive examples of how consumer goods innovation travels from the margins to the mainstream. Allison and Stephen Ellsworth started selling apple cider vinegar-based drinks at farmers markets, appeared on Shark Tank in 2018, landed a deal with investor Rohan Oza of CAVU Consumer Partners, rebranded from Mother Beverage to poppi, switched from glass bottles to colorful cans, and built a brand that had crossed $500 million in annual sales by the time PepsiCo announced its acquisition, according to PepsiCo’s own press release.

The brand’s early momentum was cultural before it was commercial. poppi built its identity through TikTok campaigns, influencer partnerships, and a community-first approach that gave it credibility with younger consumers already skeptical of legacy brands. The brand ran Super Bowl commercials in three consecutive years. The 2024 spot, titled “The Future of Soda Is Now,” became the most-watched advertisement of Super Bowl LVIII, reaching 29.1 million households according to audience analytics firm Samba TV. By 2026, now under PepsiCo ownership, the brand was confident enough to dispense with product explanation entirely, appearing with Charli XCX in a 30-second spot built around cultural energy rather than functional claims.

That arc from product education to cultural shorthand is not something legacy brands manufacture easily, and it is part of what PepsiCo was buying. As Mitch Madoff, head of retail partnerships at Keychain, observed in Beverage Industry’s April 2025 issue, brands that pay close attention to emerging product conversations and respond quickly have a structural advantage in the current market. poppi read that environment early and built accordingly.

Why Cola, Specifically

One of the more consequential decisions PepsiCo made was to bring prebiotic positioning into its core cola trademark directly, rather than managing the functional soda opportunity entirely through poppi. Pepsi Prebiotic Cola sold out during its Black Friday online debut before launching nationally in early 2026. It contains 30 calories, 5 grams of cane sugar, and 3 grams of prebiotic fiber per serving, with no artificial sweeteners.

PepsiCo Beverages U.S. CMO Mark Kirkham described the product to Retail Brew as “one of the largest new innovations in the cola category.” The strategic rationale, as Kirkham and U.S. Beverages CEO Ram Krishnan explained across multiple interviews, is that poppi and Pepsi Prebiotic Cola are designed to reach different consumers. poppi built its identity around the modern soda space and skews toward Gen Z. Pepsi Prebiotic Cola is aimed at existing cola drinkers, particularly Gen X women who have moved away from diet soda, and at bringing the Pepsi name into functional territory rather than ceding that ground to newer entrants.

The urgency behind that strategy becomes clearer with one data point Krishnan disclosed to CNN in July 2025: over the past two years, the average number of monthly occasions on which a consumer drinks traditional cola has dropped from 9.4 to 7.7. That erosion, modest as it sounds per consumer, aggregates into a significant volume problem at PepsiCo’s scale. Pepsi Prebiotic Cola is, in meaningful part, a response to that pressure.

The Science and Its Limits

The subcategory’s growth has not been without friction. In 2024, a class-action lawsuit was filed against poppi in California, alleging that its prebiotic fiber content was too low to meaningfully support gut health as its marketing implied. The company settled for $8.9 million in July 2025. The case drew attention to a tension that runs through the entire functional beverage space: consumer enthusiasm for health benefits frequently outpaces the clinical evidence behind specific formulations and dosing levels.

Regulators have taken notice. Mordor Intelligence’s January 2026 market update noted that the FDA’s updated definition of “Healthy,” which took effect in February 2025, introduces stricter criteria for health claims, mandating specific nutrient profiles and placing limits on added sugars, saturated fats, and sodium. For brands whose commercial identities are built around health positioning, navigating that regulatory environment while maintaining compelling consumer communication is an ongoing and increasingly complex challenge.

The leading brands appear to understand the stakes. OLIPOP’s investment in clinical research reflects a recognition that as prebiotic soda moves further into the mainstream and attracts greater scrutiny, efficacy claims will need to be supported by something more durable than marketing language. That discipline, if it holds, is likely to separate the brands that sustain long-term consumer trust from those that ride the trend without earning it.

A Process, Not a Conclusion

Prebiotic soda has not remade the soda aisle. At roughly three cents of every dollar spent on carbonated soft drinks in the U.S., it remains dwarfed by products that have changed very little in decades. What it has done is demonstrate, with enough commercial force to move the strategic decisions of billion-dollar companies, that consumers are willing to pay a premium for soda that asks something of itself beyond refreshment.

The remaking, if it comes, will follow from the decisions already set in motion: PepsiCo integrating poppi into its distribution system while running a prebiotic cola under its own trademark, Coca-Cola building functional positioning into the Simply brand, Olipop continuing to invest in the science that gives its health claims credibility. Whether prebiotic soda grows into something that materially reshapes the aisle, or plateaus as a well-loved but structurally limited niche, depends on whether those bets pay out.

What is already settled is that poppi started as a home-brewed concoction sold at a farmers market, went on Shark Tank, and became commercially consequential enough that two of the most powerful companies in consumer goods felt compelled to respond directly. In CPG terms, that is disruption, whatever the market share says.

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