What is a natural food and how does it differ from processed or artificial foods?

Natural foods are foods that are minimally processed and do not contain artificial additives or preservatives. They are typically whole foods that are found in nature, such as fruits, vegetables, nuts, and grains. Processed or artificial foods, on the other hand, have been altered from their original state through various methods such as refining, adding artificial ingredients, or using chemical processes. These foods often contain added sugars, fats, and preservatives that are not found in natural foods.