Poppi is meaningfully lower in sugar and calories than regular soda, making it a better choice by basic nutritional math. A 12-ounce can of Poppi contains about 5 grams of sugar and 25 calories, compared to 39 grams of sugar and 140 calories in the same size Coca-Cola. But the bigger question most people are really asking is whether Poppi is actually *good* for you, and that answer is more complicated.
The Sugar and Calorie Gap
The difference in sugar content between Poppi and a standard cola is dramatic. Regular Coke packs nearly 10 teaspoons of sugar into a single can. Poppi’s Classic Cola flavor has about one teaspoon. That gap matters for weight management, blood sugar, dental health, and long-term metabolic risk. If you’re currently drinking one or two regular sodas a day, swapping to Poppi cuts your added sugar intake by roughly 34 grams per can.
Poppi gets its sweetness from a combination of organic cane sugar, fruit juices, and stevia leaf extract. There are no sugar alcohols like erythritol in the ingredient list, which is worth noting if those give you digestive trouble. The stevia does most of the heavy lifting on sweetness, which is how the sugar stays low while the drink still tastes like soda. Some people notice a slight aftertaste from stevia, but it’s less pronounced in Poppi than in many zero-calorie drinks because the small amount of real sugar and juice helps round out the flavor.
The Gut Health Claims Are Overstated
Poppi’s marketing leans heavily on the idea that it supports gut health, thanks to prebiotic fiber from agave inulin. Each can contains about 2 grams of this fiber. The problem: that’s not enough to do much of anything for your gut.
A randomized, double-blind clinical trial published in the Journal of Nutrition found that participants needed at least 5 grams of agave inulin per day to see meaningful changes in their gut bacteria. At that dose, beneficial Bifidobacterium populations tripled. At 7.5 grams per day, they quadrupled. Two grams, the amount in a single Poppi, fell below the threshold tested. You’d need to drink more than two cans daily just to reach the minimum effective dose studied, and at that point you’re also consuming 10 or more grams of sugar and 50-plus calories from soda alone.
This gap between marketing and reality led to legal trouble. In 2024, a class action lawsuit alleged that Poppi’s “for a healthy gut” labeling wasn’t backed by scientific evidence. The plaintiffs argued that 2 grams of prebiotic fiber per can was too low to cause meaningful benefits, and that a consumer would need to drink more than four cans daily to see any potential effect. Poppi settled the lawsuit for $8.9 million while denying wrongdoing.
How It Affects Digestion
Even though 2 grams of inulin may not reshape your microbiome, it can still cause digestive symptoms in sensitive people. Research from the University of Illinois found that as little as 1 to 5 grams of inulin can cause mild gas, and larger amounts may lead to bloating. Some individuals are especially reactive. As one nutrition researcher put it, certain people “can’t even look at a food product that contains inulin without getting gas and bloating.”
If you have irritable bowel syndrome, this is particularly relevant. Inulin is classified as a FODMAP, a type of fermentable carbohydrate that can worsen IBS symptoms. The prebiotic fiber that’s supposed to help your gut could actually make things worse if your digestive system is already sensitive. This is somewhat ironic for a product marketed toward digestive wellness.
Blood Sugar and Metabolic Effects
While formal results haven’t been published yet, researchers are actively studying how Poppi compares to Coca-Cola in terms of blood sugar response. A clinical trial registered on ClinicalTrials.gov is measuring plasma glucose, insulin, and satiety hormone levels in healthy men after drinking Poppi, Olipop, Diet Coke, and regular Coca-Cola. The researchers expect that Coca-Cola will cause significant glucose and insulin spikes due to its high sugar content, while prebiotic beverages like Poppi will not.
This aligns with what we already know about sugar loads and blood sugar. Five grams of sugar simply doesn’t provoke the same insulin response as 39 grams. For anyone managing blood sugar, whether due to diabetes, prediabetes, or just trying to avoid energy crashes, Poppi is a substantially better option than regular soda. It’s not zero sugar, though, so it’s not equivalent to sparkling water or unsweetened drinks.
What You’re Actually Paying For
Poppi typically costs between $2.50 and $3.00 per can, compared to roughly $0.50 to $0.75 for a can of Coke bought in a 12-pack. That premium gets you less sugar, fewer calories, a small amount of prebiotic fiber, and apple cider vinegar (a consistent ingredient across all flavors, though in amounts too small to have demonstrated health effects).
The ingredient list is genuinely simpler than most conventional sodas. Sparkling water comes first, followed by cassava root fiber, organic cane sugar, fruit juices, apple cider vinegar, natural flavors, agave inulin, and stevia. There’s no high-fructose corn syrup, no phosphoric acid, no artificial colors, and no artificial sweeteners. If cleaner ingredients matter to you, Poppi delivers on that front.
Where Poppi Fits Realistically
Poppi is best understood as a significantly less harmful version of soda, not as a health drink. It won’t fix your gut, and it’s not nutritionally equivalent to eating vegetables or drinking water. But if you enjoy carbonated, flavored drinks and you’re trying to cut back on sugar, it fills that role well. The 25-calorie, 5-gram-sugar profile puts it in a different category from both regular soda and diet soda, which uses artificial sweeteners some people prefer to avoid.
The most honest comparison: Poppi is to regular soda roughly what a turkey burger is to a fast-food double cheeseburger. It’s a better choice within the same category, but the category itself isn’t something you need to be consuming. Sparkling water with a squeeze of fruit juice would give you a similar experience for less money and zero sugar. But if plain water bores you and you’d otherwise reach for a Coke, Poppi is a clear upgrade.