Corn flakes

At their most basic, corn flakes are just cooked, flattened corn — a pretty low-histamine starting point.

• Additives can complicate things — some commercial corn flakes include natural flavorings, artificial additives, or preservatives that some histamine-sensitive people report reacting to; checking the ingredient list is a quick habit worth building

• Pair thoughtfully — the cereal itself may be fine, but combining it with things like fermented yogurt or strawberries can quickly raise the histamine load of the whole meal

Keeping it simple — plain corn flakes with a low-histamine milk alternative — tends to be the most comfortable approach.