Whole grains play a crucial role in a healthy diet. They provide essential nutrients, including dietary fiber, B vitamins, and minerals. The fiber in whole grains aids digestion, helps control blood sugar levels, and supports heart health by lowering cholesterol. Additionally, whole grains contribute to feelings of fullness, making them beneficial for weight management. Incorporating foods like brown rice, quinoa, and whole-grain bread into meals promotes a balanced diet and helps reduce the risk of chronic diseases.