This is also a healthy food because it is rich in vitamins A and P, 2 substances that when combined will help strengthen blood vessels. Vitamins C, E, and B are also abundant in this vegetable, helping to increase resistance, anti-aging, good for the nervous system, and increase metabolism in the body. Cabbage provides very few calories, so it is also beneficial for people who want to diet.

However, not everyone benefits from increasing their cabbage intake. So who should not eat cabbage?

Patients with goiter or thyroid disorders

Few people know that cabbage contains a small amount of goitrin. This substance not only has antioxidant effects but can also cause goiter. Therefore, people with goiter or thyroid disorders should not eat cabbage if they do not want their thyroid or goiter to swell.

For these people, if they want to eat cabbage, they should eat a moderate amount. At the same time, before eating, they need to cut each leaf, soak it in salt water for about 10-15 minutes, then chop it and process it. Only then will the goitrin be completely broken down.

People with poor digestive systems

The great benefit of cabbage is that it contains a lot of fiber, which is good for preventing constipation, supporting laxatives... However, one of the people who should not eat cabbage is people with diarrhea and poor digestive systems. Because eating a lot of cabbage will make the digestive condition worse and more difficult to treat.

Patients with subconjunctival hemorrhage, allergies

Eating a lot of cabbage can also make allergies or subconjunctival hemorrhage worse. Especially pickled cabbage. Because this dish contains histamine, a substance that can cause itching, watery eyes, runny nose and congestion. Therefore, those who are allergic or have subconjunctival hemorrhage should not eat cabbage.

People with kidney disease

In addition to containing many vitamins, minerals... which are good for health, according to research, cabbage also contains quite a lot of oxalic acid. When consuming too much cabbage, oxalic acid will combine with essential nutrients in the body such as potassium, magnesium, iron, calcium... to form oxalate salts.

Oxalate salts can deposit in the kidneys, increasing the possibility of kidney stones forming. Therefore, people who should not eat cabbage include patients with severe kidney failure, even those who have to undergo dialysis. As for people with a history of kidney stones, they should consult a doctor and get advice on appropriate dosage.

In addition, for healthy people who want to reduce the amount of oxalic acid, they should cut cabbage into small pieces and cook it thoroughly.