Coke Zero Prebiotic Is Coming to Three States. Coca-Cola’s Own Site Already Shows the Can

The NACS Show opens its expo floor this morning at the Las Vegas Convention Center: more than 1,200 exhibitors showing the convenience-store trade next year’s cooler. On Monday The Coca-Cola Company published the slate it would preview there. Most of it is flavors with dates: a Coca-Cola Cherry Lime in February 2027, a Strawberry Float next summer. One item has no date past “late October” and is not a flavor. It is a “regional prebiotic test-and-learn” of Coca-Cola Zero Sugar, Sprite Zero Sugar and Fresca, “each formulated with 6 grams of prebiotic fiber and zero sugar,” sold “on a limited basis across parts of New York, New Jersey and Pennsylvania.”

Google already finishes the sentence: coke zero prebiotic, sprite prebiotic soda, fresca prebiotic soda, coca cola prebiotic soda ingredients, where to buy. So we read the release, then found the cans already on coca-cola.com, three product pages with full panels and ingredient lists, and set them beside every prebiotic can on the shelf.

The announcement: What Coca-Cola said, and what it did not

The release commits to six things: 6 grams of prebiotic fiber, zero sugar, three brands, three states, a late-October start and a test, run “as the company evaluates consumer response.” It does not say what the fiber is, the calories, the can size, the price, the stores or how long the test runs. In July, Sporked published can renders credited to an Instagram account showing the same three brands with “6 grams of soluble fiber per can,” with nothing from the company: images that circulated, not an announcement. In September, Stacy Jackson, vice president of the Coca-Cola trademark, told NewsNation: “It is going to be a test. We are launching in the fall.” Monday was the first time the company put the states and the gram count in writing.

The can: Coca-Cola’s own site fills in most of the blanks

The Coca-Cola Zero Sugar Prebiotic Soda page lists one size, 12 fluid ounces, and a panel: 15 calories, 7 grams of carbohydrate, 6 grams of dietary fiber at 21 percent of the Daily Value, no sugar and 34 milligrams of caffeine. The ingredients, in order: carbonated water, soluble corn fiber, then less than 2 percent of caramel color, phosphoric acid, aspartame, potassium benzoate, natural flavors, potassium citrate, acesulfame potassium and caffeine. Sprite Zero Sugar Prebiotic and Fresca Prebiotic show the same 15 calories and 6 grams, caffeine free, soluble corn fiber second again. Fresca’s copy calls 6 grams “20% of your daily recommended fiber”; its panel says 21, and 6 of 28 is 21.4. The pages and the hub that groups them carry no date, price, store list or test length. But the fiber question is answered by a Coca-Cola document: on all three cans, soluble corn fiber.

That is a different ingredient from most of the category. Soluble corn fiber is, in the FDA’s 2018 science review, one of the “common names used to identify resistant maltodextrin as an ingredient,” and the FDA’s fiber Q&A lists resistant maltodextrin among the fibers it intends to add to the label definition. It is the fiber in Coca-Cola’s Simply Pop and in Walmart’s bettergoods soda. It is not inulin, the chicory or agave fructan in Poppi, Olipop’s refrigerated line and Trader Joe’s can; the two behave differently in the trials below.

The table: 6 grams, can for can

Six grams puts the Coke test level with Simply Pop and Olipop’s shelf-stable line, double a Poppi or a Pepsi, three short of the Olipop in the refrigerator case. Olipop is two drinks: its 9-gram Vintage Cola says “Keep refrigerated” and lists chicory and Jerusalem artichoke inulin; the 6-gram version is shelf-stable and swaps those for acacia and guar (our Caramel Apple read). Poppi is 3 grams in every flavor; Bloom declares none, because its prebiotic is not a fiber the FDA counts. The rest of the shelf is in our prebiotic soda tracker.

The dose: What 6 grams does, and what 12 does

Start with the scale. The Daily Value for fiber is 28 grams, so a can is 21 percent of it. Against what people actually eat, bigger: USDA’s 2021 to 2023 intake tables put the average American adult at 16.3 grams a day, so one can is about 37 percent of a typical day’s fiber, and a 9-gram Olipop is 55.

Then the trials, which are few, small and mostly company-funded. In a 2016 University of Reading study funded by Tate & Lyle, groups of eight adults took 6, 12 or 18 grams of its soluble corn fiber a day for two weeks: all three doses were well tolerated, and bifidobacteria rose most at 6 grams, one Coke can’s worth. In a 2010 University of Minnesota study supported by the NIH, Tate & Lyle and the university, 20 adults took 12 grams a day for two weeks, “well tolerated, with mild to moderate GI symptoms,” and stool weight did not change. It took 20 grams a day, in a 2013 Minnesota trial of 36 adults, to raise fecal weight, with more flatulence and rumbling: “a mild laxative effect.” In a 2012 French tolerance study, 40 grams in one sitting still passed, “twice the amount tolerated for inulin.”

Inulin, the fiber in the other cans, acts at smaller doses and announces itself sooner. Minnesota’s 2010 tolerance trial found up to 10 grams a day of native inulin well tolerated, flatulence the most common complaint. A University of Illinois trial with Ingredion co-authors saw bifidobacteria rise three- and four-fold at 5 and 7.5 grams a day of agave inulin. At 12 grams a day of chicory inulin, in a 2017 trial of 44 people with constipation that had co-authors from the ingredient maker BENEO, stools went from a median of three a week to four. Hannah Holscher at Illinois puts it as at least 3 grams of prebiotic fiber for any benefit and at least 12 grams of inulin for constipation (our Poppi piece). Two Coke cans is 12 grams. In the inulin trials that is the constipation dose. In the soluble corn fiber trial it was the dose that did not change stool weight.

The sweeteners: Zero sugar, and the same two sweeteners

The zero in the name is the sweetener question. Regular Coca-Cola Zero Sugar currently lists aspartame, acesulfame potassium and, last, stevia extract; Sprite Zero Sugar and Fresca list aspartame and acesulfame potassium. The three prebiotic pages list aspartame and acesulfame potassium; the prebiotic Coke lists no stevia extract. Whether the test cans match these pages is for Coca-Cola to say. What our sweeteners piece reported is narrow: a Cambridge laboratory screen of 39 sweeteners against 25 gut bacterial species in culture found about 75 percent altered the growth of at least one species, and its authors said the lab system cannot reproduce the human body. Nobody in it drank anything.

The cola context: Simply Pop, Poppi, Pepsi

Coca-Cola launched Simply Pop on February 18, 2025, with 6 grams of fiber, 25 to 30 percent juice and no added sugar in 12-ounce slim cans; its Strawberry runs 60 calories and 10 grams of sugar. PepsiCo closed its purchase of Poppi on May 19, 2025, for “cash consideration of $1.95 billion,” its quarterly filing says, announced Pepsi Prebiotic Cola that July and took it nationwide on February 17, 2026: 3 grams of fiber, 30 calories, 5 grams of cane sugar. Pepsi’s release calls it the first legacy cola with prebiotic fiber. Coca-Cola’s test is the first to put the fiber into the zero-sugar flagships, which is a different bet. More in our prebiotic soda explainer.

When a can reaches a shelf in one of the three states, we will read it and note the price. Facts to carry: 6 grams of soluble corn fiber, 15 calories, zero sugar, aspartame and acesulfame potassium, 12 ounces, parts of three states from late October, and a price no document gives yet. The Coca-Cola Company, PepsiCo, Olipop, Poppi, Bloom, Trader Joe’s, Walmart, Tate & Lyle, Ingredion and BENEO had no involvement in this article. It is educational, describes what the cited releases, product pages and studies say, and is not medical advice.