Cabbage is nutritious, but it isn’t safe for everyone when eaten in excess or the wrong way. Doctors warn that certain people should be cautious.
Those taking blood thinners like Warfarin should keep cabbage intake consistent because its high vitamin K content can reduce the drug’s effectiveness. People with a history of kidney stones should limit cabbage due to oxalates, while those with hypothyroidism should avoid large amounts—especially raw—and not eat it close to taking levothyroxine. Cabbage can also worsen bloating and IBS symptoms because it’s high in FODMAPs.
For healthy adults, eating cabbage 3–4 times a week is generally fine, especially when cooked. Moderation and proper preparation are key to enjoying its benefits without side effects
