The New York Times recently published a story under the headline, “Beverages With Benefits: Do They Really Work?” The piece addressed what it described as the “flourishing” functional beverage market, made up of everything from prebiotic sodas for gut health to nootropics for brain acuity. The newspaper rightly points out that such products are an extension of the health supplement market that has generated profits for decades. As this functional beverage market grows, entrepreneurs and large beverage companies alike have been...