Clean food is as close to its natural form as possible – unprocessed, minimally handled from source to shop, and preferably with little in the way of packaging. For many, clean also means organic. BBC Good Food's nutirtional therapist Kerry Torrens recommends you buy the best quality you can afford and, where budget permits, invest in organic meat, eggs and dairy.
Going totally organic can be an expensive business and choosing from the wealth of options available can be confusing.