As a member of the Brassicaceae family, cabbage contains goitrogens, substances that can interfere with iodine absorption when eaten raw or in excessive amounts.
Recommendation: Cook cabbage thoroughly and avoid eating it raw.
Do not consume large amounts daily, and avoid eating cabbage close to the time you take levothyroxine or other thyroid medications.
4. People With Bloating or Irritable Bowel Syndrome (IBS)
Cabbage is high in FODMAPs, which ferment easily in the gut and produce gas. This can lead to bloating, abdominal discomfort, excessive flatulence, and worsening IBS symptoms.
Recommendation: Limit portion sizes and choose well-cooked cabbage over raw or pickled versions.
How Much Cabbage Is Enough?
For healthy individuals, eating cabbage about three to four times per week is generally reasonable.
To improve digestion and reduce gas:
- Opt for boiling, steaming, or lightly stir-frying rather than eating it raw.
- Pair cabbage with ginger or garlic to help minimize bloating.
- Avoid consuming large amounts of raw cabbage, especially on an empty stomach or late in the evening.