A supplement panel can give an ingredient amount while showing a symbol in the Daily Value column. If the symbol points to Daily Value not established, it describes the reference-value field. It is not the same statement as zero ingredient content.
Questions 9 and 30 in FDA’s April 2005 labeling guide discuss the symbol and its footnote. This older, nonbinding guide is used here to explain the relationship between fields, not to certify a current label’s compliance.
Keep amount, percentage and footnote distinct
When transcribing a panel, give the ingredient amount and unit their own field. Preserve the symbol in the percentage field and copy its footnote nearby. A spreadsheet that accepts numbers only should allow a text status instead of converting the symbol to zero.
These distinctions answer different questions: the amount field states what quantity is declared; the Daily Value field relates to a reference value; the footnote explains the symbol. Removing the footnote makes the percentage column harder to interpret.
Handle missing information consistently
A blank amount in an unreadable image is another kind of gap. It should not be merged with a clearly printed amount followed by a Daily Value footnote. Likewise, an ingredient omitted from a document is not automatically a laboratory finding of absence.
For a comparison chart, show the text status or an explanatory note next to the amount. This lets readers distinguish a disclosed quantity without an established reference value from a missing transcription.
No product label or intake target was assessed here. The article resolves a small but consequential data-entry problem without assigning a nutritional meaning to zero.
Source: FDA labeling guide, Chapter IV, questions 9 and 30, April 2005 document read 22 October 2026.
Related document and label guides: Guides.
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