"Vitamin B12 is almost entirely found in animal products, although it is present in yeast (including yeast extract such as Marmite) and seaweed.
"ວິຕາມິນ B12 ແມ່ນພົບເກືອບທັງ ຫມົດ ໃນຜະລິດຕະພັນສັດ, ເຖິງແມ່ນວ່າມັນມີຢູ່ໃນເຊື້ອລາ (ລວມທັງສານສະກັດຈາກເຊື້ອລາເຊັ່ນ Marmite) ແລະອາຫານທະເລ.