Harvard Medical Students Gain Nutrition Expertise from Gaples Institute Course

Study finds online curriculum strengthens knowledge and counseling confidence among future physicians.

Published on Feb. 21, 2026

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A new study published in The American Journal of Medicine evaluates the impact of the Gaples Institute's online nutrition course on Harvard Medical School students. The course, now required at 12 U.S. and Canadian medical schools, was found to strengthen students' understanding of key nutrition concepts, increase their readiness to deliver evidence-based guidance to patients, and deepen their appreciation for how social and structural factors shape dietary choices.

Why it matters

Equipping future physicians with strong nutrition knowledge is crucial, as diet-related chronic diseases continue to burden the U.S. healthcare system. However, medical schools typically provide limited training in this area. The Gaples Institute course offers a scalable, ready-to-adopt model to advance nutrition education in medical curricula.

The details

The study analyzed reflections from Harvard medical students who completed the required Gaples Institute online course, which covers the essentials of clinical nutrition. All students achieved high scores on knowledge quizzes, and qualitative analysis revealed consistent themes of strengthened understanding of nutrition concepts, increased readiness for patient counseling, and deeper recognition of social influences on diet.

  • The study was published in February 2026.
  • The Gaples Institute course is now required at 12 U.S. and Canadian medical schools.

The players

Gaples Institute

An educational nonprofit dedicated to advancing evidence-based nutrition and lifestyle education for health professionals and the general public.

Stephen Devries, MD

Preventive cardiologist, Executive Director of the Gaples Institute, and Adjunct Associate Professor of Nutrition at the Harvard T.H. Chan School of Public Health.

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What’s next

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The takeaway

This study highlights the Gaples Institute's online nutrition course as a scalable and impactful approach to strengthening nutrition education in medical training, equipping future physicians to better integrate evidence-based nutrition guidance into patient care.