Gluten Free Filler Free Vegetarian GMO Free Whey Isolate (WPI)NOT SURE ABOUT A WPI FLAVOUR? Well, now you can sample them to see what everyone is talking about! With our 14 best tasting protein flavours you are sure to find your new favourite protein. VPA WPI is produced using only premium grade undenatured whey protein isolate (cold filtered). VPA protein is an excellent source of essential amino acids and contains one of the highest proportions of branched chain amino acids found in natural protein. NOT SURE ABOUT A WPI FLAVOUR? Well, now you can sample them to see what everyone is talking about! With our 14 best tasting protein flavours you are sure to find your new favourite protein. VPA WPI is produced using only premium grade undenatured whey protein isolate (cold filtered). VPA protein is an excellent source of essential amino acids and contains one of the highest proportions of branched chain amino acids found in natural protein.