Cereals?
In the UK all Kellogs products are unsuitable for vegans as Vitamin D3 (of animal origin) is added. In the US some of Kellogg’s cereals are apparently vegan, Kellogg’s Nutri-Grain cereal (plain “Wheat” variety only) is a good vegan source of B12. Be careful though, the almond- raisin variety contains animal based glycerin.