Oats Bran is the outer layer of the oat groat and packed with health benefits. It is high in fibre, vitamins, minerals, and antioxidants. Which may aid heart health, blood sugar control, bowel function and weight loss. These can be easily added to the diet. Oats Bran is the outer casing of oat grain. These are processed to remove the inedible exterior husk of the grain that leaves behind the kernel called an oat groat.