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Soy Protein Isolate
Soy Protein Isolate
Also known as: soya protein isolate, isolated soy protein
Low concern
Soy protein isolate is FDA GRAS. Soybeans are a major food allergen under FALCPA — disclosure required.
Found in
11,183 products
What it is
Refined protein extracted from defatted soybean flakes, typically ≥90% protein content.
Protein source, emulsifier, water binder, texturizer.
Why it's flagged
- Soy major allergen (FALCPA disclosure required)
- Hexane residue from extraction (typically below trace levels)
- Phytoestrogens (isoflavones) present
What regulators actually say
"Soybeans... are among the major food allergens identified by law."
Regulatory status
United States — FDA
GRAS as protein source; soy allergen labeling required under FALCPA
European Union — EFSA
Permitted; allergen labeling required
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