Pepsi Prebiotic Cola

The best straight cola here, and the thinnest spec sheet. PepsiCo entered the category not long after closing its $1.95 billion acquisition of Poppi in mid-2025, positioning it as one of the first legacy colas to add prebiotic fiber. Each can carries less fiber than the other prebiotic sodas on this list, along with less sugar and far fewer calories than a standard Pepsi, which runs about 41 grams of sugar and 150 calories. It's been well received for tasting close to a real cola. It lands this low on range rather than quality — it has the least fiber on this list and a limited flavor lineup so far, led by Original Cola. Start here if you are switching off regular cola.