Should Everyone Worry?
No.
For most people, eating cabbage is not a problem.
However, individuals with existing thyroid conditions—particularly those related to iodine deficiency—may wish to discuss intake with their healthcare provider.
Cooking May Help
Cooking can reduce some goitrogenic compounds, making cooked cabbage a preferred option for certain individuals.
Group 2: People Prone to Digestive Discomfort
Although cabbage contains beneficial fiber, some people find it difficult to digest.
Possible Symptoms
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Bloating
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Gas
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Abdominal discomfort
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Digestive upset
Why It Happens
Cabbage contains fermentable carbohydrates that may be broken down by bacteria in the digestive tract.
This process can produce gas.
Individuals Who May Notice Symptoms
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People with sensitive digestion
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Individuals with irritable bowel syndrome (IBS)
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Those following low-FODMAP diets
Helpful Tips
Some people tolerate:
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Smaller portions
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Cooked cabbage
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Fermented cabbage products
better than large amounts of raw cabbage.

Group 3: People Taking Blood-Thinning Medications
Cabbage is rich in vitamin K.
Why Vitamin K Matters
Vitamin K plays an important role in blood clotting.