Established
Recognized factual or physiological relationship supported by authoritative sources.
Method
Every edge needs a verb and a source.
Measurements, biological roles, evidence-dependent outcomes, and computed paths are kept separate so exploration does not manufacture a health claim.
Supported
Consistent evidence supports the claim, with relevant limits shown.
Context-dependent
The relationship changes materially by product, population, dose, or setting.
Mixed
Credible sources or studies do not point in one direction.
Early
Promising but not ready for a confident practical conclusion.
Not established
The available evidence does not support the proposed direct relationship.
Publishing boundary
Paths help you navigate. They do not prove causation.
A route from a food to a nutrient to a body process is useful for discovery. It becomes a publishable relationship only when the direct claim, evidence level, provenance, and review state are recorded.