Initially, lecithin was derived from egg York, but with time, other key sources including cottonseed, seafood, soybeans, kidney beans, black beans, milk, sunflower and corn, have been identified.
ໃນເບື້ອງຕົ້ນ, lecithin ແມ່ນໄດ້ມາຈາກໄຂ່ York, ແຕ່ວ່າດ້ວຍເວລາ, ແຫຼ່ງທີ່ ສໍາ ຄັນອື່ນໆລວມທັງ cottonseed, ອາຫານທະເລ, ຖົ່ວເຫຼືອງ, ຖົ່ວ ຫມາກ ໄຂ່ຫຼັງ, ຖົ່ວ ດໍາ, ນົມ, ດອກຕາເວັນແລະສາລີ, ໄດ້ຖືກ ກໍາ ນົດ.