02 Oct 2019 --- Plant-based, functional beverages brand Rebbl has launched a new line of drinks that boast six grams of prebiotic fiber for digestive health. Sparkling Prebiotic Tonics are marketed as “refreshing” and “hydrating” and include flavor profiles such as cold-brew cola and ginger turmeric. Moreover, the drinks only have six to eight grams of sugar per bottle, the company says. The launch comes as functional beverages are progressively becoming more popular among consumers as a fast and enjoyable way to boost daily nutritional needs.