When I began coordinating GI research in inflammatory bowel disease (IBD), I noticed something unexpected: Second- and third-year GI fellows, bright, motivated, steeped in medical science, had received little to no formal training on diet’s role in disease. For many, nutrition was treated as peripheral, “something dietitians handle,” rather than core physician knowledge.

This is not a reflection on their ability or commitment. It reflects how medical education is structured. U.S. medical schools provide, on average, fewer than 20 hours of nutrition instruction across all four years, and some offer none at all (National Academy of Sciences). Much of that limited exposure focuses on deficiencies or acute interventions like TPN, rather than preventive or disease-modifying dietary strategies. By the time physicians reach fellowship, many have never been asked to consider nutrition as a frontline therapy for IBD. This pattern represents a classic problem of practice, a recurring, real-world gap between what clinicians are taught and what patients actually need. It is not about individual failure; it is about structural design. When education sidelines prevention, even the most motivated physicians are left without the tools to address one of the most modifiable aspects of chronic disease: nutrition.

In my dissertation project, IBD Diet Knowledge and Education of GI Fellows, I designed a short educational module to fill this gap. I worked with second- and third-year fellows who were eager to learn, and the results surprised them as much as they surprised me. In less than one hour of focused learning, fellows reported stronger knowledge of dietary strategies, greater confidence in discussing diet with patients, and, perhaps most importantly, stronger intentions to refer patients with IBD to nutritional services. They did not suddenly become dietitians. That was never the goal. Instead, they began to see themselves as part of a collaborative team, physicians who could recognize the role of nutrition, talk about it with patients, and ensure referrals were made. Even that small shift can change the trajectory of a patient’s care.

For me, this was a telling moment. I realized how much of our health care system’s behavior mirrors the way we train its people, reactive instead of preventive, specialized instead of collaborative. Seeing fellows’ perspectives shift after one short module showed that the gap is not insurmountable; it is just neglected. The lesson is clear: Clinician education is one of the most powerful, and often overlooked, tools for system change. When providers are equipped with practical knowledge, whether about diet in IBD, care coordination, or patient engagement, they can prevent complications before they start. Prevention is not separate from science; it is applied science. Every dietary adjustment, early referral, or patient conversation draws directly on physiology, behavior research, and evidence-based practice. The downstream impact is enormous: fewer hospitalizations, lower costs, and better outcomes. This is the essence of value-based care, rewarding quality, prevention, and patient well-being rather than quantity of procedures. This is not just an IBD lesson, it is a mirror for the entire health care system. If we want to embed prevention and evidence into daily practice, we need to redesign how clinicians learn.

What leaders and educators can do

This lesson from GI fellowship training has broader implications for health care systems everywhere:

• Make clinician education practical: Fellows do not just need theory; they need skills they can use in patient visits the next morning.
• Integrate prevention, not just crisis care: Do not wait until patients require TPN. Teach diet and lifestyle as part of disease management from day one.
• Use scalable interventions: Online modules and micro-learning can deliver meaningful improvements at low cost.
• Track mindset change: Even small shifts in what clinicians notice, discuss, and refer can ripple out into better patient outcomes.

Health care is evolving toward value-based care, where outcomes matter more than volume. But no policy shift can succeed if clinicians leave training without the tools to deliver better care. My experience with IBD fellows reminded me that sometimes, all it takes is one short module to change how a physician will practice for decades. If we want healthier patients and more sustainable systems, we cannot treat clinician education as an afterthought. It is not an expense, it is the foundation of lasting change.

Beata Pasek health researcher.