There are quite a few vegan cereals on the market today. As always, check the ingredients, but this vegan cereal list should get you started.
It must be quite odd to a new vegan when you consider that ready oven chips may have been pre baked in animal fat so would not be suitable for a vegan. And then we have some products like "Prawn" Cocktail crisps which are vegan from some suppliers. Confusing to say the least.
Thanks goodness more companies are now labelling their food as being suitable for vegans - after all, they are silly not to seeing that veganism is on the up and up. You can also get vegan lists from most supermarkets nowadays too. I know that M&S, Sainsburys, and the Co-op are very good at providing these lists.
Remember to decide whether you think
sugar
is suitable for vegans or not.