Miracle Grain Lowers Blood Pressure & Cholesterol and Cures Type 2 Diabetes How does one tiny grain manage to do so much in such a small amount? One “miracle” grain that lowers blood pressure and cholesterol, and according to a study published in the journal Experimental and Clinical Endocrinology, it even cures type 2 diabetes. Oats are amazing! They are packed with nutrients that effectively eliminate some of the most devastating and stubborn diseases.