Eating Oats Helps lower LDL bad cholesterol and may help reduce the risk of heart disease. Oats help you feel fuller longer, which helps control your weight. Oatmeal and oats may help lower blood pressure. Oats may help reduce your risk of type 2 diabetes, since their soluble Fibre helps control blood sugar. Oats are high in beta-glucans, a kind of starch that stimulates the immune system. Oats are higher in Protein and Healthy Fats and lower in Carbohydrates than most other whole grains.