Lupin Flour
Also known as: lupine flour
Nutritious legume flour, but lupin is an EU-required allergen with potential for cross-reactivity with peanut allergy. Bitter (high-alkaloid) varieties must be debittered before consumption — alkaloids (e.g., lupanine) are toxic.
What it is
Flour milled from lupin seeds (Lupinus albus, L. angustifolius, L. luteus); high-protein legume.
Protein- and fiber-rich flour used in gluten-free and high-protein baking.
Why it's flagged
- lupin allergen (EU)
- cross-reactive with peanut allergy
- alkaloid toxicity in bitter varieties
What regulators actually say
"Lupin is a member of the same plant family as peanuts. As a result, individuals with peanut allergy may also have an allergic reaction to lupin."
"EFSA established an acute reference dose (ARfD) of 0.0056 mg total QA/kg body weight for quinolizidine alkaloids in lupin seeds."
Regulatory status
United States — FDA
Permitted as food; FDA has issued allergen alerts for lupin-containing products.
European Union — EFSA
Lupin and products thereof — labeled allergen (Reg. 1169/2011 Annex II); ongoing monitoring of quinolizidine alkaloids.
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