Lupin (also called “lupine”) is a legume from the same plant family as peanuts, and because it is related to the peanut, it contains similar allergens. Thus, lupin can trigger similar symptoms and anaphylaxis.
The lupin is used to make a lot of different savory and sweet foods. This includes sauces, baked foods, fermented foods, and everyday meals. The beans are a common street/bar snack in many places.