Cassava flour is an obvious one, but that’s just the beginning. “I think because cassava is gluten and nut free, it makes an ideal flour for those with food allergies,” Cecere says. “Tapioca is also made from cassava which is used in bubble teas and as a thickener. Cassava chips are sold as a snack food, and cassava supplements are marketed for fertility.” She notes that scientific evidence doesn’t back the claims about fertility, and adds that folks should consult their doctor before taking supplements.