4 Types of People Who Should AVOID Eating Cabbage

When it’s a concern

• You eat cabbage daily or in large quantities
• You frequently consume it raw (e.g., coleslaw, salads, smoothies)

Safer option

Cooking cabbage reduces most goitrogenic activity, making it gentler on the thyroid.

2. People With Digestive Sensitivity or IBS

Cabbage is high in insoluble fiber and contains certain carbohydrates that can ferment in the gut. For people with irritable bowel syndrome (IBS) or naturally sensitive digestion, this may cause:

• Gas
• Bloating
• Cramping
• Discomfort

Raw cabbage tends to be more problematic, but even cooked cabbage can trigger symptoms in some individuals.

Tip

Start with small portions or choose gentler vegetables like carrots or zucchini if cabbage consistently causes issues.

3. People Taking Blood-Thinning Medications

Cabbage is extremely high in vitamin K, which plays a major role in blood clotting. For individuals taking medications like warfarin, sudden increases in vitamin K can reduce the drug’s effectiveness.

This doesn’t mean people on blood thinners must avoid cabbage entirely—consistency is key. Sudden changes in vitamin K intake (eating a lot one day and none the next) can disrupt medication balance.

Recommendation

Maintain steady vitamin K intake and speak with a healthcare provider before making dietary changes.