Portion Evidence

Use label values and measured portions to review a meal, preserve uncertain ingredients, and save the math behind each adjustment.

1. Open Portions and choose a saved meal or create a label worksheet.
2. For each known food, enter label calories, label quantity and quantity eaten in matching units. Add the label or recipe source.
3. Review the mixed total, save the worksheet and share the portion math.

Label and portion values remain approximate. Use the same preparation state and units for both amounts. Unreviewed foods retain their original estimate ranges. Serving sizes are not recommended amounts. Reviews do not replace original meal history or daily calorie totals. Up to 30 foods per worksheet and 200 saved reviews.

PlateMath 1.3 adds a real, persistent Calibration Lab for learning from saved estimates:

- Compare any saved meal with a label, weighed portion, recipe, or later knowledge
- Record whether an estimate was high, low, or close, plus confidence and notes
- Track evidence count, average confidence, and known-value bias over time
- Open calibration from the home toolbar or a saved result
- Keep calibration entries linked to local meal history for consistent deletion
- Improved meal selection, large-text layouts, VoiceOver labels, history details, and test coverage
- Removed dormant cloud-sync code so the implementation matches the on-device privacy promise

PlateMath 1.2 adds Estimate Audit, a pro review layer for every meal estimate.

- New range-width check explains when photo portions are uncertain
- New macro cross-check compares macro-derived calories against the plate total
- New hidden-calorie prompts flag sauces, oils, toppings, desserts, and drinks
- Added in-app USDA and FDA nutrition reference links
- Reworded nutrition notices for clearer App Store compliance
- Polished result-card hierarchy for faster review after capture