Health Economics, Implementation Science & Systems Outcomes

A nutrition intervention can be scientifically sound and still fail to make a difference — if it costs too much, never reaches the people who need it, or collapses the moment it leaves the trial setting. Health Economics, Implementation Science & Systems Outcomes addresses the disciplines that determine whether good nutritional ideas actually translate into real-world impact. It moves the conversation beyond "does this work?" to the harder, more consequential questions: is it worth the cost, can it be delivered at scale, and does it improve outcomes across whole systems?

Three connected fields drive the discussion. Health economics weighs the costs and benefits of nutritional interventions, asking how limited resources can deliver the greatest health return and demonstrating the economic value of prevention. Implementation science studies how evidence-based practices are adopted, scaled, and sustained in real settings — confronting the notorious gap between what research shows and what routine practice delivers. Systems outcomes, meanwhile, look at the bigger picture: how nutrition interventions ripple through health systems, populations, and economies over time.

Together these perspectives bring rigour and realism to nutrition's translation into practice. The discussion examines cost-effectiveness analysis, the barriers and enablers that shape adoption, strategies for scaling and sustaining programmes, and the measurement of impact at the systems level. Health economists, implementation researchers, programme planners, policymakers, and public health leaders will find this session especially valuable, particularly those advancing implementation science in nutrition. The pragmatic, results-focused character of the topic appeals strongly to delegates at the Nutrition Conference, spotlighting how economic insight and implementation expertise ensure that nutritional evidence achieves what it ultimately exists to do — improve health, efficiently and at scale.