Fresh or frozen green peas may be high histamine, and canned green peas are high histamine. Dry green peas are most likely to be tolerated if they’re soaked overnight and then quickly cooked in an instant pot, reducing lectins and potential for histamine production. Green peas in all forms should be avoided for at least the first month or so of a low histamine diet, because all the low histamine food lists disagree as to green peas histamine content.