Junk food is an informal term applied to some foods which are perceived to have little or no nutritional value, or to products with nutritional value but which also have ingredients considered unhealthy when regularly eaten, or to those considered unhealthy to consume at all.
Foods more likely to be considered junk food generally are those that are more convenient and easy to obtain in a ready-to-eat form, though being such does not automatically define the food as "junk food."
Fast food also known as Quick Service Restaurant or QSR within the industry itself, is the term given to food that can be prepared and served very quickly. While any meal with low preparation time can be considered to be fast food, typically the term refers to food sold in a restaurant or store with low quality preparation, preheated or precooked ingredients, and served to the customer in a packaged form for take-out/take-away.
Convenience food, or tertiary processed food, is commercially prepared food designed for ease of consumption. Products designated as convenience foods are often prepared food stuffs that can be sold as hot, ready-to-eat dishes; as room temperature, shelf-stable products; or as refrigerated or frozen products that require minimal preparation, typically just heating.
Slow food Opposed to the culture of fast food, the sub-movement known as Slow Food seeks to encourage the enjoyment of regional produce, traditional foods, which are often grown organically and to enjoy these foods in the company of others. It aims to defend agricultural biodiversity.
Homemade food Made or prepared in the home: homemade pie.
Made by oneself.
Made by oneself.