[header] How to get a phd in nutrition [title] Obtain a bachelor's degree in a science-related field. [step] The first major prerequisite you'll need is a bachelor's degree in a science-related field. The bachelor's degree will provide a foundation for all of the knowledge you'll learn as a graduate student in nutrition. 
[substeps] Generally, doctoral programs in this field look for completed coursework in nutrition or dietetics, so consider these as potential majors for your bachelor's degree. Some programs will consider people with a wide variety of educational backgrounds.