FOLLOW THE CONNECTIONS

The knowledge graph.

Explore substances, mechanisms, and effects. Select a node to read its article and inspect the evidence.

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Mapping connections…

SubstanceConceptRelationship

A diamond connects all members of one relationship. Type filters keep qualifying context visible.

1 substances · 1 concepts · 1 relationships

Explore an accessible text view

Substances

Caffeine

Concepts

Methylxanthinechemical-family

Relationships

Editorial index: substances classified under methylxanthine. This index does not assert a combined effect. A chemical family that includes caffeine.
- Methylxanthineindex concept
- Caffeineindexed substance
Source 1 ↗

Relationship nodes connect multiple concepts in one sourced statement. Member roles identify the substance, biological target, measured outcome, or exposure context. Editorial index relationships group classifications. Connections are not recommendations to combine substances.