Whole-food plant-based diets impact health positively by reducing the risk of chronic diseases such as heart disease, diabetes, and certain cancers. These diets emphasize the consumption of fruits, vegetables, whole grains, nuts, and seeds while minimizing or excluding animal products. They provide essential nutrients, including vitamins, minerals, and fiber, while being lower in saturated fats. This dietary approach not only supports weight management but also promotes overall well-being and longevity.