Oats are very nutritious: Oats are rich in carbohydrates and fiber, but they are also higher in protein and fat than most other cereals. They are rich in multivitamins and minerals. Whole oats are rich in antioxidants, including anthranilate: oats contain many powerful antioxidants. These compounds can help lower blood pressure and provide other benefits. Oat contains a powerful type of soluble fiber called beta-glucan: beta-glucan is high in soluble fiber and has many benefits. It helps lower cholesterol, and blood sugar levels promote healthy intestinal bacteria and increase satiety.