Olipop is a prebiotic soda designed to support digestive health while delivering the fizzy, sweet experience of traditional soda with a fraction of the sugar. A 12-ounce can contains 2 to 5 grams of sugar and around 6 grams of dietary fiber, compared to roughly 39 grams of sugar and zero fiber in a classic cola. The core idea is simple: replace empty calories with plant-based fibers that feed the beneficial bacteria in your gut.
How the Prebiotic Fiber Works
Your body can’t digest the types of fiber in Olipop. That’s the point. These fibers pass through your stomach and small intestine intact, then arrive in your large intestine where trillions of gut bacteria ferment them as fuel. This process encourages the growth of beneficial microbes while crowding out less helpful ones.
The key fiber at play is inulin, which comes primarily from chicory root and Jerusalem artichoke in Olipop’s formula. Research on inulin-rich foods has found they boost populations of “good” gut microbes while decreasing harmful bacteria, help people feel full longer, and reduce cravings for unhealthy foods. These effects come from the fermentation process itself, which produces short-chain fatty acids that nourish the cells lining your colon and send satiety signals to your brain.
What’s in the OLISmart Blend
Olipop’s proprietary formula, called OLISmart, is a mix of nine plant-based ingredients, each contributing a slightly different type of fiber or botanical compound:
- Cassava root and chicory root provide the bulk of the prebiotic fiber, including inulin
- Jerusalem artichoke adds more inulin along with potassium, iron, and antioxidants
- Nopal cactus contributes fiber and antioxidants
- Kudzu root supplies a resistant starch that acts as a prebiotic
- Marshmallow root provides plant mucilage, a gel-like substance that can soothe the digestive tract
- Acacia fiber and guar fiber increase the soluble fiber content
- Calendula flower adds antioxidant compounds
The blend layers different fiber types, from soluble fibers that dissolve in water to resistant starches that behave more like insoluble fiber. This variety matters because different beneficial bacteria prefer different fuel sources.
How It Compares to Regular Soda
The nutritional gap between Olipop and traditional soda is substantial. A can of classic cola delivers about 39 grams of sugar, no fiber, and roughly 140 calories. Olipop comes in at 2 to 5 grams of sugar and 6 grams of fiber per can. That sugar comes from fruit juice concentrate and cassava root syrup, with additional sweetness from stevia leaf extract. There are no artificial sweeteners or sugar alcohols.
A randomized controlled trial published on medRxiv compared a prebiotic soda (matching Olipop’s profile of 3 grams of sugar and 6 grams of fiber) against traditional soda in healthy adults and found the prebiotic version produced significantly lower blood sugar spikes after consumption. This makes sense: fiber slows the absorption of sugar into the bloodstream, and there’s simply far less sugar to absorb in the first place.
How Much Fiber You’re Actually Getting
Federal dietary guidelines recommend 14 grams of fiber per 1,000 calories consumed. For most adults eating around 2,000 calories a day, that works out to about 28 grams. One can of Olipop provides roughly 6 grams, which is about 21% of that daily target. That’s a meaningful contribution, roughly equivalent to eating a medium apple or a half cup of black beans.
Most Americans fall well short of their fiber goals. Dietary fiber is considered a nutrient of public health concern by the USDA because chronically low intake is linked to a range of health problems. A prebiotic soda won’t fix a low-fiber diet on its own, but it does add fiber in a format most people actually enjoy consuming, which counts for something.
Possible Digestive Side Effects
The same properties that make Olipop’s ingredients beneficial can also cause temporary discomfort. Chicory root fiber is associated with gas, bloating, and belching, particularly when your gut isn’t accustomed to higher fiber intake. Jerusalem artichoke and inulin from any source can have the same effect.
If you rarely eat high-fiber foods, drinking a full can on an empty stomach may cause noticeable gassiness or abdominal gurgling. Starting with half a can and gradually increasing your intake gives your gut bacteria time to adjust. Most people find these symptoms fade within a week or two as their microbiome adapts to the additional prebiotic fuel.
What the Science Hasn’t Confirmed Yet
While the individual ingredients in Olipop have research behind them, the specific OLISmart blend as a complete formula has not been tested in published clinical trials. A study at Texas Christian University is currently recruiting participants to compare the effects of Olipop, Poppi, Diet Coke, and Coca-Cola Classic on blood sugar, insulin, fullness, and a gut hormone called GLP-1 that plays a role in appetite regulation. That trial involves just 10 participants and hasn’t reported results.
The broader evidence on prebiotic fibers like inulin is solid, but the leap from “inulin supports gut health” to “this specific soda with this specific dose transforms your microbiome” is one that hasn’t been fully validated. What is clear is that you’re trading a sugar bomb for a fiber-rich, low-sugar alternative, and that swap alone carries real nutritional advantages regardless of how much credit the botanical blend deserves.