As of 2007, it has developed a definition for lean that is given to foods that contain less than 8 grams of total fat, less than 3.5 g of saturated fat, and less than 80 milligrams cholesterol per serving.
In the United States, the term tutor is generally associated with one who gives professional instruction (sometimes within a school setting but often independently) in a given topic or field.
A tutorial is a method of transferring knowledge and may be used as a part of a learning process. More interactive and specific than a book or a lecture, a tutorial seeks to teach by example and supply the information to complete a certain task. A tutorial can be taken in many forms, ranging from a set of instructions to complete a task to an interactive problem solving session (usually in academia).