What a gluten-free claim means on an FDA-regulated US food label
Check the US gluten-free threshold and ingredient conditions, preserve special wheat wording, and avoid treating a scanner result as a safety certificate.
For an FDA-regulated food sold in the United States, gluten-free is a regulated claim with conditions. It is not a measurement produced by photographing the package. Read the claim in its market context before using it in a product comparison.
Read the threshold together with the ingredient conditions
21 CFR 101.91 requires unavoidable gluten in a food bearing the claim to be below 20 parts per million, equivalent to below 20 milligrams per kilogram. The boundary is strictly below 20, not 20 or less.
The rule also restricts ingredients: wheat, rye, barley and their crossbred hybrids are gluten-containing grains. Ingredients derived from them without processing to remove gluten are excluded. A grain-derived ingredient processed to remove gluten, such as wheat starch, cannot result in the finished food containing 20 ppm or more. Checking one number without checking the ingredient conditions is incomplete.
Keep the special wheat explanation attached
If a label combines a regulated gluten-free claim with a required wheat declaration, the rule specifies a linked symbol and a nearby explanation that the wheat was processed to meet FDA gluten-free requirements. Preserve that relationship when copying the label. Do not erase wheat from your notes or rewrite gluten-free as wheat-free.
Fermented or hydrolyzed foods have additional record requirements where a suitable analytical method is unavailable. These address compliance before fermentation or hydrolysis and cross-contact controls. A photo cannot inspect those manufacturing records.
Compare two fictional cracker packages
Imagine package A explicitly says gluten-free. Package B says it has no gluten-containing ingredients but does not display a gluten-free claim. For each, copy the exact words instead of reducing both to the same checkbox.
The FDA gluten-free questions and answers explains that the ingredient-only phrase does not necessarily mean a food meets every gluten-free condition. It also notes that the regulated claim is voluntary: its absence alone does not establish that a food contains gluten. This leaves package B's full status unresolved in the example.
Your next step can be specific. Ask the manufacturer whether package B, identified by product version and country of sale, meets the FDA gluten-free conditions. Keep any response with the original wording and its date. Do not answer the question by finding a similar cracker from another country or by assuming that all flavours share one formulation.
Know what your record can establish
A useful record distinguishes a printed claim, an ingredient-only statement, a manufacturer response and an unanswered question. None of those observations is a laboratory result from your own package. If coeliac disease, wheat allergy or another dietary condition is involved, use the relevant clinical guidance; this article does not decide whether a particular food is suitable for an individual.
For routine label exploration, download Ingredi AI from the App Store or Google Play. Check its current listing and terms before purchasing. Retain the full package text and any linked explanation rather than treating an app summary as certification.