The Prebiotic Soda Tracker
The soda aisle now promises to feed your microbiome, and that promise lives in a few grams on the back of the can. This tracker is every prebiotic and probiotic drink we have read, label by label: the fiber, the sugar, the live-culture count (or the lack of one), and the dose set against the trials. One number per can that matters. Newest first.
-
Label read
Vita Pop · Vita Pop (Liberty Beverage)
5 g of fiber on the front, 18% of the Daily Value. 11 g of added sugar on the back, 22%.
Sep 26, 2026 -
Founder profile
wildwonder · wildwonder
Each can: 5 g of fiber, 6 g of sugar, 1 billion Bacillus subtilis DE111. No published study of the drink.
Sep 21, 2026 -
Label read
Apple Prebiotic Soda · Trader Joe’s
5 g of fiber from one source, agave inulin: exactly the low dose in the only controlled agave-inulin tolerance trial.
Sep 18, 2026 -
Label read
Crisp Apple Tea · Halfday
6 g of fiber from three sources. Acacia quietly replaced “fructan fiber,” and the can doesn’t print the split.
Sep 18, 2026 -
Label read
Sparkling Apple · Culture Pop
12 g of sugar, 0 g added, all of it from apple juice. The probiotic count is only “billions” at canning.
Sep 12, 2026 -
Label read
Caramel Apple · Olipop
9 g of fiber, 56% of the average American’s daily intake, one gram under the inulin tolerance line.
Sep 9, 2026 -
Comparison
Poppi vs Olipop · Poppi, Olipop
Poppi carries 3 g of fiber, a quarter of the roughly 12 g tied to easing constipation. Olipop carries 6 or 9.
Aug 9, 2026 -
Explainer
Prebiotic sodas · Poppi, Olipop, Coca-Cola, PepsiCo
One can holds 3 to 9 g of fiber, against a daily target of 25 to 38 g.
Jul 9, 2026
How we read these
Every entry is a full piece, not a blurb. We read the label or the study ourselves, check each number against the primary source (the brand’s own panel, the FDA or USDA filing, the paper on PubMed), and say plainly what we could not verify. No brand pays to be here, and no brand sees a piece before it runs.
Launched something in this category, or spotted a product we have missed? Tell us at editor@guthealthtimes.org.
Other trackers: Fiber gummies →Protein drinks & snacks →GLP-1 & the gut →
Educational reporting on what labels, filings and studies say. Not medical advice, and not a buying guide.