The Short Answer
Olipop is the superior functional soda. It delivers a massive 9 grams of diverse prebiotic fiber per can, compared to Poppi's measly 2 grams. While both are great low-sugar alternatives to traditional soda, only Olipop actually packs enough fiber to legitimately support your digestive system. Whats Actually In Prebiotic Sodas
Poppi is essentially a lightly sweetened apple cider vinegar drink with excellent marketing. In fact, Poppi agreed to an $8.9 million class-action settlement in 2025 after consumers sued them for falsely advertising gut health benefits that their low fiber content couldn't actually deliver.
Why This Matters
Prebiotic sodas are dominating the beverage aisle, promising to fix your gut while satisfying your sweet tooth. But at $2.50 to $3.00 per can, you need to know if you're buying a genuinely functional beverage or just expensive, flavored sparkling water. Do Prebiotic Sodas Work
The difference comes down to clinical dosing. Fiber is essential for feeding beneficial gut bacteria, but a token amount of fiber won't actually move the needle on your microbiome. A trendy pastel can doesn't mean much if the active ingredients are virtually non-existent.
Furthermore, swapping out traditional soda for either of these brands is a massive dietary upgrade. A standard cola packs nearly 40 grams of sugar, while these alternatives sit at a much safer 5 grams or less. Is Soda Bad
What's Actually In Olipop
Olipop relies on a proprietary "OLISMART" blend that provides 9g of fiber—32% of your daily requirement. Is Olipop Actually Healthy
- Chicory Root Inulin & Cassava Root — Two potent, well-researched prebiotic fibers that actively feed healthy gut bacteria.
- Jerusalem Artichoke & Nopal Cactus — Whole-plant fiber sources that increase the diversity of nutrients reaching your lower intestine.
- Stevia Leaf & Cassava Syrup — Natural sweeteners that keep the sugar count down to 2-5g per can without using synthetic chemicals. Is Diet Soda Bad
What's Actually In Poppi
Poppi's claim to fame is apple cider vinegar, though they disguise the sharp vinegar taste completely. Is Poppi Good For You
- Apple Cider Vinegar — Included for its purported blood sugar benefits, though the actual amount per can is highly diluted.
- Agave Inulin — The sole source of prebiotic fiber in their original formula, providing just 2 to 3 grams per can (which sparked their false advertising lawsuit).
- Organic Cane Sugar & Stevia — Poppi uses real cane sugar combined with stevia to achieve its sweetness, clocking in at 4-5g of sugar.
What to Look For
Green Flags:
- High fiber content (5g+) — This ensures a functional dose of prebiotics that can actually nourish your microbiome.
- Diverse fiber sources — Different gut bacteria feed on different fibers; a blend of roots and botanicals is vastly superior to a single isolated fiber.
Red Flags:
- Agave Inulin as the only fiber — It's a cheap ingredient often used in amounts too small to actually matter for your digestion.
- "Fairy dusting" ingredients — Highlighting buzzy ingredients like apple cider vinegar without disclosing if there's an effective clinical dose inside.
The Best Options
If you're going to spend premium prices on a healthy soda, you should get premium, verifiable health benefits. Healthiest Prebiotic Soda
| Brand | Product | Verdict | Why |
|---|---|---|---|
| Olipop | Vintage Cola | ✅ | Packs 9g of diverse fiber and botanical extracts. |
| Olipop | Cream Soda | ✅ | Zero artificial ingredients and legitimately feeds the microbiome. |
| Poppi | Classic Cola | ⚠️ | A fine low-sugar soda alternative, but weak on actual gut benefits. |
The Bottom Line
1. Buy Olipop for gut health. With 9g of fiber from diverse plant sources, it actually delivers on its functional promises. Is Olipop Better Than Diet Coke
2. Treat Poppi as a standard diet soda swap. It's a massive upgrade from traditional chemical-laden sodas, but don't expect it to fix your digestion. Is Diet Soda Worse Than Regular
3. Watch out for painful gas. If you aren't used to eating fiber, drinking a 9g Olipop might cause temporary bloating, so ease into it.
FAQ
Why was Poppi sued?
Poppi was hit with a class-action lawsuit for false advertising regarding its "gut healthy" claims. The lawsuit argued that Poppi's 2g of fiber is too low to provide meaningful benefits, and you'd have to drink four cans a day to see any digestive impact. They settled for $8.9 million in 2025.
Does Olipop or Poppi taste better?
Taste is subjective, but Olipop generally has a creamier, more traditional soda profile. Poppi leans slightly fruitier and more acidic, similar to a sparkling juice or heavy seltzer. Both effectively mask the taste of their functional ingredients.
Can I drink these instead of water?
No, functional sodas should never replace your daily water intake. While they are hydrating, the high fiber content in Olipop requires plenty of plain water to digest properly without causing constipation. Is Tap Water Safe