Vegetables play a crucial role in a healthy diet by providing essential nutrients like vitamins, minerals, and dietary fiber. They are typically low in calories, making them ideal for weight management. The high fiber content aids in digestion and can help prevent chronic diseases such as heart disease and diabetes. Additionally, vegetables are rich in antioxidants, which help combat oxidative stress and inflammation. Regular consumption of a variety of vegetables ensures a diverse intake of nutrients, promoting overall health and wellness.