Read folate mcg DFE and a folic-acid amount separately
Copy folate DFE and parenthetical folic acid into separate fields, preserve their serving basis, and avoid adding two descriptions of the same folate.
A US label can show a folate amount followed by a second amount in parentheses. Copy both, with their names and units. Adding them together creates a misleading total because the folic acid is already represented within the folate entry.
Use two fields for one label line
FDA's explanation of folate labeling says folate is expressed in micrograms of dietary folate equivalents, or mcg DFE. When some of that total comes from folic acid, its amount appears in mcg in parentheses. The two quantities answer different questions about the same product.
For a fictional label reading Folate 340 mcg DFE (200 mcg folic acid) per 40 g of cereal, use this transcription worksheet:
| Record | Copied amount | Meaning for the worksheet |
|---|---|---|
| Total folate | 340 mcg DFE | The folate entry on its equivalence basis |
| Folic acid | 200 mcg | The separately identified folic-acid amount |
| Food amount | 40 g cereal | The shared basis for both entries |
Do not write 540 mcg as a combined result. If your comparison portion is 60 g of the same cereal, the portion factor is 60 divided by 40, or 1.5. The proportional label estimates become 510 mcg DFE and 300 mcg folic acid, still in separate fields. This calculation assumes the labeled cereal and a uniform portion; it does not measure absorption or establish a recommended portion.
Why an equivalence factor needs context
The NIH folate fact sheet describes DFE using different relationships for naturally occurring food folate and folic acid. It also distinguishes folic acid taken with food from a supplement taken on an empty stomach. Those definitions explain why replacing every DFE value with an identical number of micrograms of folic acid is unreliable.
For a shopping comparison, preserve the declared values rather than reconstructing them from incomplete ingredients. NIH also states that formal DFE conversion factors for supplemental 5-MTHF have not been established. That does not justify labeling a product's printed DFE value incorrect; it means this worksheet cannot supply a universal conversion for an unknown formulation.
Check the whole line after scanning
If a photograph cuts off the parentheses, mark the folic-acid field unreadable and take a clearer photo. Do not enter zero merely because the crop omitted it. Keep the serving description alongside both quantities, especially when comparing a food panel with a supplement panel.
To try food-label reading with Ingredi AI, use the official App Store download or official Android download. Compare captured text with the package, including the parentheses. This guide teaches transcription and arithmetic; it does not determine personal folate needs or whether a supplement is appropriate.