For more than a century, the Department of Nutritional Sciences & Toxicology at UC Berkeley has contributed to research and education in nutrition, toxicology, and human metabolism. The department has played a key role in foundational studies on vitamins and minerals, as well as the effects of cholesterol and fats. Its researchers have isolated important nutrients such as vitamins E, B6, and K, trained registered dietitians, and developed methods for testing E. coli in water systems.
In response to advances in technology that allow for deeper study of metabolic networks and genetic factors in disease, the department has changed its name to the Department of Metabolic Biology & Nutrition (MBN). This change was approved by university leadership after more than two years of planning and consultation within the department.
“Renaming the department acknowledges our continued evolution and future direction,” said Professor and MBN Chair David Moore. “Aligning the department name with our current focus not only enhances our visibility but ensures that our faculty and alumni are appropriately recognized at the forefront of their fields.”
The program’s history dates back to UC Berkeley’s founding when faculty across various campus units conducted research on animal agriculture and home economics. The college appointed Myer Jaffa as the first professor of nutrition in the United States and hosted UC Berkeley’s first program in nutrition and dietetics under Professor Agnes Fay Morgan. Over time, courses in home economics were phased out following departmental reorganization.
In 1992, “Toxicology” was added to reflect new faculty interests. Notably, Professor Leonard Bjeldanes joined during this period; he is known for identifying mutagens in cooked meats and anti-carcinogens in vegetables like cabbage and broccoli.
Recently, programs focused on molecular toxicology were phased out as part of a shift toward metabolic biology. In 2023, nearly 60% of those polled within the department supported adopting the new name. Approval came from both internal committees and university governance bodies.
Moore stated that clarifying the department’s identity will help attract prospective students while encouraging interdisciplinary collaborations related to chronic diseases such as diabetes and heart disease. Undergraduates now have access to a major that integrates dietetics with physiology and metabolism for a comprehensive approach to human health.
The new name also reflects an ongoing commitment to experimental biology focused on metabolic regulation.
“I am proud of our heritage and the achievements of our current faculty, and I believe the new name will help us carry that legacy forward,” said Moore.
