Knowledge Pathways

The PEN System is organized by topic into Knowledge Pathways. Browse by practice category, then jump into pathways with evidence summaries, toolkits, backgrounds, client handouts and resources.

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Select a Practice Category

Choose from four key practice areas to explore evidence-based nutrition content

Food / Nutrients

Evidence and guidance on foods, food groups, nutrients, and dietary patterns.

Health Condition / Disease

Clinical nutrition topics focusing on prevention, treatment and therapeutic interventions.

Population Health / Lifecycle

Healthy eating and active living across populations with a prevention and wellness focus.

Professional Practice

Practice tools, guidelines, and methods to support effective evidence-based care.