Prebiotic soda was featured on Shark Tank
                                
                                
                                    (Newser) -
                                    PepsiCo said Monday it's acquiring the prebiotic soda brand Poppi for $1.95 billion. The acquisition gives PepsiCo a fast-growing brand in the popular functional beverage category, the  AP  reports. Allison Ellsworth, the co-founder of Austin, Texas-based Poppi, said the combination with PepsiCo will expand Poppi's reach. Ellsworth...