Final answer:
Sparkling water is a product that is defying the downward trend in diet carbonated beverages. Brands like LaCroix, Perrier, and San Pellegrino have experienced increased sales and popularity as consumers seek healthier alternatives to sugary sodas.
Step-by-step explanation:
One product bucking the downward trend in diet carbonated beverages is sparkling water. Sparkling water has gained popularity as a healthier alternative to sugary sodas, leading to increased sales and consumption.
One example is the brand LaCroix, which has experienced significant growth in recent years due to its wide variety of flavors and the perception that it is a healthier option.
Other brands, such as Perrier and San Pellegrino, have also seen success in the sparkling water market, catering to consumers looking for carbonation without the added sugars and calories.