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The Ph.D. in Food and Nutrition Sciences program has variable credit hour requirements, but usually requires an additional 60 hours and an additional 3-4 years beyond the Master鈥檚 to complete. An individualized program of study is developed by the student and Graduate Committee. Course requirements are flexible but include 4 credits of seminar with formal courses in nutrition sciences and related areas chosen to prepare the student for comprehensive examinations and research expertise. Both written and oral comprehensive examinations are required at the end of formal course work, but may be taken no earlier than one year into the program.

Students who have not completed a Master鈥檚 degree with thesis may not enter the doctoral program. Courses in statistics are required as part of the program of study. Doctoral students must document a professional competency unrelated to their dissertation research; this competency may be demonstrated via course work or other practical activities. Competencies may include languages, electron microscopy, innovation engineering, marketing, and distance education. Although Ph.D. students are encouraged to publish manuscripts with their advisors, there is no minimum number of publications required for graduation.