AdvertisementDairy Ice Cream, No Cow Needed: These Egg And Milk Proteins Are Made Without AnimalsAugust 02, 2019Maria GodoyfacebookEmailTwo scoops of Perfect Day's vegan ice cream, made with synthetic whey proteins. Protein from whey, a byproduct of cheese-making, is often used to give frozen desserts a creamy texture. Perfect Day makes its whey proteins using microbes. (Olivia Falcigno/NPR)