Oats are rich in soluble beta-glucan fiber, an active compound that helps lower cholesterol, supports blood sugar regulation, and improves digestion. Oats are especially notable for their ability to reduce the risk of heart disease and diabetes and to soothe skin inflammation. In addition, oats support the digestive system, help maintain a feeling of fullness for longer, and may benefit dry skin, ulcerative colitis, or itchy skin in patients with kidney disease.