Deirdre Tobias is an associate professor in the Department of Nutrition at the Harvard T.H. Chan School of Public Health and Brigham and Women's Hospital. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. D.K. Tobias and F.B. Hu. The 2025–2030 Dietary Guidelines for Americans — Progress, Pitfalls, and the Path Forward. N Engl J Med 2026;394:1969-1971.