A healthy diet is essential for a healthy life. This does not mean eating only healthy foods. It means, keeping to a diet as much as possible. An occasional piece of cake or a chocolate will not make a difference to health. In fact, this is considered very healthy. Constant binging on sweets and fatty foods, however, is not so. A healthy diet not only helps improve a healthy lifestyle, but also helps maintain an ideal weight. Eating smaller portions, including more vegetables in a meal, switching to healthier salad dressings, and eating more fruits is the way to enter a healthy lifestyle through foods.