What this feature does
When a portion estimate looks wrong, the most useful correction is a known quantity or a clear relative description—not extra decimal places.
Why it can be useful
Portion size is often one of the largest drivers of calorie variation. A correction can be meaningful even when the final value remains a range.
A careful workflow
Use the feature as a reviewable part of your record.
- Compare the estimate with packaging, a recipe yield, household measure, or a weight you actually know.
- Correct the component with the largest likely mismatch first.
- Reanalyze and keep uncertainty visible for unmeasured ingredients.
Limits to keep visible
Convenience and analytical detail do not remove uncertainty.
- Visual size is not the same as mass or energy density.
- Household measures can vary and should not be represented as laboratory measurements.
Limits and cautions
- Visual size is not the same as mass or energy density.
- Household measures can vary and should not be represented as laboratory measurements.
- Features and plan availability can change; confirm the current in-app experience before making a purchase decision.
Sources and further reading
- Feast for iOS: current product behavior review — Feast Accessed 2026-08-01.
- Feast - Caloric Intelligence — Apple App Store Accessed 2026-08-01.