Sweet lupin beans

Sweet lupin beans are the low-alkaloid variety, making them gentler overall — and they carry no significant histamine concern.

• Sweet vs bitter — bitter lupin beans require lengthy soaking and repeated water changes to remove alkaloids before they're edible, a process that differs from the preparation of sweet lupins; sweet lupins skip that involved process

• Growing popularity — lupin flour and lupin-based meat alternatives are increasingly common; the sweet variety in these products is typically the low-histamine form

Worth checking labels on packaged lupin products to confirm the variety used.