People with thyroid problems may need to be cautious with very large amounts of raw cabbage because cruciferous vegetables contain compounds that can interfere with iodine use. Cooking cabbage reduces much of this effect.
Those with sensitive digestion may experience gas or bloating because cabbage contains raffinose and plenty of fiber. Starting with smaller portions and eating it cooked may make it easier to tolerate.
The article also warns people with allergies or kidney problems, but these claims need context. Cabbage is not automatically unsafe for everyone with these conditions, so anyone with significant kidney disease, recurrent stones, or suspected food reactions should ask a healthcare professional whether any dietary restriction is actually necessary.
