Logging
Change a serving without starting again
Open the entry
Tap a food row in Today. Food detail shows its current gram weight and nutrition. Press Portion to open the serving picker above the detail sheet.
Choose a source serving or grams
Use a listed USDA portion where one exists, or enter grams. The serving chooser is a separate nested layer. Use this portion returns to the review without moving the sheet below.
Save the change
Press Save portion. The diary, meal subtotal, summary and chart all use the same updated entry. Browser Back or a downward drag closes the top sheet one layer at a time.