Cabbage is nutritious and most people do not need to avoid it. The claim that exactly four types of people must not eat cabbage is generally an oversimplification.
People who may need some caution include:
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People taking warfarin — cabbage is high in vitamin K. You generally don’t need to eliminate it, but keeping your vitamin-K intake consistent is important.
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People who get significant gas or bloating — cabbage can cause digestive symptoms in some people. Smaller portions or cooked cabbage may be easier to tolerate.
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People with a cabbage or cruciferous-vegetable allergy — this is uncommon, but a confirmed allergy means avoiding the food.
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Some people with thyroid disease — cabbage contains goitrogenic compounds, but normal amounts of cruciferous vegetables are generally considered safe, especially when cooked. Routine avoidance is usually unnecessary.
So, there is no evidence-based rule that four specific groups must completely avoid cabbage.
If you tell me whether you’re asking because of thyroid disease, diabetes, blood-thinning medication, stomach problems, or another condition, I can explain whether cabbage is appropriate in that situation.
