28 Mar 2019 --- No sugar, low-calorie and high-protein functional beverages, such as protein waters, will continue to see a surge in popularity, according to Volac, UK manufacturer of nutritional whey proteins and lactose products. Functional beverages are “an exciting space,” Alan Johnstone, Business Development Manager at Volac, tells NutritionInsight. Tapping into the high protein and clean labels trends, the company is exploring “functional hydration” through the launch of ingredients that will fortify water without changing its refreshing taste, while maintaining a “clean label” appeal.