Britt's Superfoods range of healthy, organic frozen wheatgrass juice & detox drinks. 100% natural ... The No.1 Wheatgrass Juice & Superfoods Company. From fields to your freezer - Discover more about the complexities of bringing our award-winning outdoor grown Wheatgrass juice was our first product when we launched in 2009 and remains a customer favourite today. Only now, it is joined by a family of fabulous SuperFood juices, each with their own incredible nutritional health benefits.