Plum

Plums sit comfortably in the moderate category — not among the most reactive fruits, but not as gentle as pears or melons either.

• Biogenic amines — plums naturally contain amines that contribute to histamine load, and their level tends to increase as the fruit ripens fully

• Compared to related fruits — plums are generally similar in reactivity to other stone fruits like cherries, and typically less problematic than highly acidic fruits like citrus

Very ripe or overripe plums may be more reactive, so catching them at peak ripeness rather than past it is worth noting.