Tapioca starch is a gluten-free flour that comes from the cassava plant, a neutral-tasting flour and is naturally gluten-free. You can use it to thicken soups, stews, and gravies. It has a high starch content, and is low in fat, protein and fiber. It is easy to digest and has a low allergenic potential, making it a suitable option for people with dietary restrictions or sensitivities.