Pepsi is buying Poppi, the prebiotic soda sued last year for alleged deceitful marketing. PepsiCo announced on Monday that it has entered into an agreement to purchase Poppi for $1.95 billion,

Pepsi enters the "healthy" soda wars and buys prebitotic soda brand Poppi for nearly $2 billion, and fans of the beverage are concerned the formula will change.

PepsiCo announced this week that it will acquire prebiotic soda brand Poppi for $3.06 billion ($US1.95b) as the food and beverage giant seeks to tap into the heightened consumer demand for healthy products.