Spinach
Green leafy vegetables, especially spinach should not be reheated in the microwave, because of its nitrate content that can turn toxic when it is reheated releasing carcinogenic properties. Also, the iron found in spinach can oxidize after reheating and this can generate free radicals causing diseases.
1 thought on “7 Common Foods That Become Toxic When Reheated”
I have reheated all of these with no problems whatsoever.