As a food science expert with a focus on dietary preferences and the production of food products, I can provide a detailed answer to your question.

Corn flakes are generally considered to be vegetarian because they are made from corn, which is a plant-based ingredient. The process of making corn flakes typically involves cooking the corn with a sweetener, mashing it, and then rolling it out into thin flakes. These flakes are then toasted to create the final product. There are no animal products used in this process, which aligns with the vegetarian diet.

However, it's important to note that some brands may use additives or processing aids that could be derived from animal sources. For example, some corn flakes might be fortified with vitamins and minerals, and in some cases, these additives could be sourced from animal products. Additionally, there could be trace amounts of animal products used in the processing equipment, which could lead to cross-contamination.

To ensure that the corn flakes you consume are vegetarian, it's best to look for products that are explicitly labeled as vegetarian or to check the ingredient list and processing information provided by the manufacturer.

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Many breakfast cereals are suitable for vegans, including: Weetabix, Rice Krispies, Frosties, many brands of cornflakes, Jordan's Country Crisp, Kelloggs Fruit 'n' Fibre and Just Right. Instead of dairy milk, try adding soya milk or almond milk, or delicious fruit soya yoghurts. ... There are many more vegan cereals.read more >>