Coca Cola is introducing a line of prebiotic sodas, marking the legacy company's first foray into the "functional" soft drink market led by upstarts Olipop and Poppi — and further tightening competition as more Canadian brands launch their versions of the fizzy drinks.

Coca-Cola has always been a leading brand in drink innovation. From its Coca-Cola Freestyle machines that allow you to try soda creations you won’t find at the grocery store to its creative in-store flavors,