The study of nutrition may focus on how to prepare healthy foods, which diets can cause diseases or how to store different kinds of foods. The study of how foods affect people can be beneficial for nutritionists, health bloggers or personal trainers.

Officially known as the Italian Republic, the country is found in southern Europe. The official language is Italian and the cultural rich capital is Rome. Many of the world's oldest universities are located in Italy, in particular the University of Bologna (founded in 1088). There are three Superior Graduate Schools with "university status", three institutes with the status of Doctoral Colleges, which function at graduate and post-graduate level.

A Doctorate of Philosophy, or PhD, may require eight years or more to complete, as well as a dissertation. In most fields, the possession of a PhD qualifies the holder to become a professor of a chosen subject. There are many different programs available.