Quay’s Organic Tigernut flour is made from grinding the tubers that grow on the nutsedge plant. It is a superfood with a natural sweet taste. Description: Quay’s Tigernut flour is made from grinding the tubers that grow on the nutsedge plant. It is a superfood with a natural sweet taste. A good substitute for wheat, given its gluten free properties. Nutrition: Tigernuts are a great source of natural minerals. They provide calcium, magnesium, potassium, sodium, phosphorus and Zinc. It is considered a superfood for this reason. It is a good source of vegetable proteins as it contains essential amino acids. It helps to reduce bad cholesterol. It is also good for expectant and breastfeeding mothers.