What this feature does

Eligible Feast analyses can include source citations so a user can inspect supporting nutrition references. Citation availability depends on the analysis and should not be described as universal.

Why it can be useful

A citation helps identify where supporting information came from. It does not prove that a photographed portion, ingredient match, or total is exact.

A careful workflow

Use the feature as a reviewable part of your record.

  • Open the cited source when an analysis provides one.
  • Check whether it supports the specific nutrient or food claim you are evaluating.
  • Separate source quality from the unresolved question of how closely the reference food matches your meal.

Limits to keep visible

Convenience and analytical detail do not remove uncertainty.

  • Not every analysis is eligible for citations.
  • A credible source can support reference data while the meal-specific estimate remains uncertain.

Limits and cautions

  • Not every analysis is eligible for citations.
  • A credible source can support reference data while the meal-specific estimate remains uncertain.
  • Features and plan availability can change; confirm the current in-app experience before making a purchase decision.

Sources and further reading

  1. Feast for iOS: current product behavior review — Feast Accessed 2026-08-01.
  2. Feast - Caloric Intelligence — Apple App Store Accessed 2026-08-01.