The term BRAN MATERIAL can be solved with the three-letter word OAT. Oats are a type of cereal grain that is widely cultivated for its edible seeds. It is a popular breakfast food, and is also used in baking and other culinary applications. Oats are a rich source of dietary fiber, vitamins, minerals, and antioxidants. They are also a good source of protein and have a low glycemic index, making them a healthy choice for people with diabetes.