Cabbage Is Nutritious but Harmful for These 5 Groups of People – Eating It May Do More Harm Than Good

Cabbage is a popular vegetable enjoyed by many, but it is not suitable for everyone. Certain groups of people should be cautious, as consuming cabbage could worsen their health conditions.

1. People with thyroid disorders (hypothyroidism)
Cabbage contains compounds called goitrogens, which can interfere with the absorption of iodine—an essential element for thyroid function. For those with hypothyroidism, consuming too much cabbage, especially raw cabbage, may aggravate the condition, leading to fatigue, weight gain, and hormonal imbalances. People with thyroid issues should limit cabbage intake or only eat small amounts that are thoroughly cooked.

2. People with bloating, indigestion, or flatulence
Cabbage is rich in insoluble fiber and tends to produce gas during digestion. For individuals with weak digestive systems, frequent stomach discomfort, or digestive disorders, eating cabbage can trigger bloating, belching, and abdominal discomfort—especially if undercooked or eaten at night alongside oily foods.

3. People with a history of kidney stones
Although cabbage is not the highest in oxalates, it still contains a considerable amount. Oxalates can bind with calcium in the body to form calcium oxalate crystals, a common cause of kidney stones. Regularly eating cabbage without sufficient water intake can increase the risk of stone formation. Those prone to kidney stones should eat cabbage in moderation and stay well-hydrated.

4. People taking blood-thinning medications (such as warfarin)
Cabbage is naturally high in vitamin K, which plays a role in blood clotting. For individuals on anticoagulants like warfarin, excessive vitamin K intake may reduce the effectiveness of the medication and increase the risk of blood clots. While patients don’t need to completely avoid cabbage, they should keep vitamin K intake consistent and avoid consuming it in large amounts.

5. People with irritable bowel syndrome (IBS)
Cabbage belongs to the category of high-FODMAP foods—types of carbohydrates that are difficult to digest and easily fermented in the gut. For individuals with IBS, eating cabbage may trigger abdominal pain, bloating, and indigestion. To minimize symptoms, they should avoid raw cabbage, eat small amounts if desired, cook it thoroughly, and carefully monitor their body’s response.