Guide
Soy allergen labeling on US food packs
Soybeans are a major US allergen. Soy sauce, tofu, miso, soy lecithin, edamame and many “vegetable protein” blends need the word soy. Highly refined soybean oil is discussed separately by FDA — do not assume every oil is exempt.
Reviewed against official guidance.SourcesNot legal advice.
The short answer
Soybeans are a major US allergen. Soy sauce, tofu, miso, soy lecithin, edamame and many “vegetable protein” blends need the word soy. Highly refined soybean oil is discussed separately by FDA — do not assume every oil is exempt.
Where this shows up in a real kitchen
US packaged foods hide soy in lecithin in chocolate, in “broth” powders, and in meat alternatives. UK copy says soya; US packs should say soy or soybeans so FALCPA’s common name is obvious to American shoppers.
The US rule
Declare soy or soybeans. Lecithin from soy is not the highly refined oil exemption. FDA’s allergen page lists soy derivatives. If you use sunflower lecithin instead, soy should leave the Contains line the day the spec changes.
How to apply it
Search specs for soy, soya, lecithin (soy), tofu, tempeh, miso, hydrolyzed soy protein. Declare soy. Keep UK “soya” as an extra parenthesis if you sell both markets, but do not omit soy on a US Contains line.
- Find soy in lecithin, sauce, protein and oil specs.
- Declare soy on the pack in US wording.
- Reissue when lecithin source changes.
- Do not treat “vegetable oil” as automatically soy-free or soy-containing — read it.
Worked example
Chocolate-chip cookies using chips with soy lecithin: flour (wheat), butter (milk), chips (sugar, chocolate, cocoa butter, soy lecithin, vanilla), eggs. Contains: wheat, milk, soy, egg. A later switch to sunflower-lecithin chips drops soy — leftover Contains: soy would then be false.
Checks that belong on this pack
| Check | Why it matters |
|---|---|
| Soy lecithin is declared as soy | Chocolate chips are a frequent source. |
| Miso and tofu are obvious soy | Still write the word. |
| Highly refined soy oil is not assumed | Get the specification. |
| UK soya-only wording is not the US line | American shoppers look for soy. |
Leaving soy off because the ingredient is “just lecithin”
Lecithin from soy is a soy ingredient for FALCPA purposes in ordinary chocolate and bakery use.
What LabelClear can and cannot print
When chips or soy sauce hit the paste, mark soy. On a US pack use soy or soybeans, not only soya.
Questions
Is soy sauce wheat as well?
Is soy lecithin exempt as a highly refined oil?
Do edamame snacks need soy?
Official sources
Everything on this page traces back to these. Where they and we disagree, they are right — tell us and we'll fix it.
- Food allergiesU.S. Food and Drug Administration
- Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA)U.S. Food and Drug Administration
- Food Labeling GuideU.S. Food and Drug Administration
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