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.

Individuals who do not want to invest the time or money toward a formal degree can work to earn a diploma instead. This is ideal for individuals who just graduated from secondary school or those looking to change or jumpstart careers.

Online learning refers to use of electronic media and information and communication technologies (ICT) in education. With online learning one has the flexibility to access their studies at any time and from anywhere they can log on.