Top 10 · Updated October 2026
Highest-Protein Plain Corn Flakes
Plain corn flakes: typically 7.4 g of protein per 100 g (median of 21 products). The plain corn flakes with the most protein per 100 g. Useful if you are trying to increase your protein intake. We checked 17 plain corn flakes with complete data.
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Corn Flakes
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How we built this list
We ranked all published plain corn flakes on Foodmetria that have a photo and the required nutrition data, using values per 100 g from the product label. Ties are broken by Nutri-Score and by how often shoppers scan the product. Rankings update automatically as label data changes. Read our methodology.