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.

Students can select individual courses in accordance with their interests. Students may also structure a series of classes in a way that might achieve specific objectives such as improving job skills, pursuing new careers, or obtaining certificates or degrees.

Part time learning allows one to obtain part-time degrees even if one cannot attend school on a full-time basis. One can learn at his or own pace, gradually accumulating credits which count towards final qualification.