These are foods that people with thyroid tumors should limit eating every day.
What causes thyroid ca:nc:er?
Experts are not sure why some cells become ca:ncerous (malignant) and attack your thyroid. Some factors, such as radiation exposure, a diet low in iodine and faulty genes can increase the risk.
Other risk factors include:
– Enlarged thyroid (goiter).
– Family history of thyroid disease or thyroid cancer.
– Thyroiditis (inflammation of your thyroid gland).
– Gene mutations (changes) that cause endocrine diseases, such as multiple endocrine neoplasia type 2A (MEN2A) or type 2B (MEN2B) syndrome.
– Low iodine intake.
– Obesity (high body mass index).
– Radiation therapy for head and neck cancer, especially during childhood.
– Exposure to radioactive fallout from nuclear weapons or a power plant acc-ident.
Doctors advise you to eat less of these foods
1. Cruciferous Vegetables
Cruciferous vegetables such as bok choy, kale, cabbage, etc. contain a lot of goitrogens – compounds that block the absorption of iodine into the thyroid gland and reduce thyroid stimulating hormone (TSH). Excessive consumption, especially when eaten raw, can increase the risk of goiter and thyroid tumors. However, if cooked, the enzymes in the vegetables will be broken down, helping to reduce the amount of goitrogens. Patients can still eat them but should limit them.
2. Products made from Soybean
Soybeans contain particularly high amounts of isoflavones – a substance that can reduce the ability to produce thyroid hormones. Though they are not a completely banned food, you should limit the consumption of soybeans and soy products. For patients who have had thyroid surgery and need to supplement thyroid hormones from medication, the consumption of soybeans needs to be strictly controlled.
3. Processed Foods, Lots of Additives
Processed or canned foods are often low in nutrients but high in preservatives, unhealthy fats, and uncontrolled seasonings. These ingredients can reduce the thyroid’s ability to produce thyroxine, affecting the treatment process. Patients need to supplement fresh, nutritious foods to improve their health and support effective treatment.
4. Processed Foods, Many Additives
Processed or canned foods often contain little nutrition but contain many preservatives, bad fats and uncontrolled spices. These ingredients can reduce the thyroid’s ability to produce thyroxine, affecting the treatment process. Patients need to supplement fresh, nutritious foods to improve their health and support effective treatment.
5. Foods Containing Caffeine
Caffeine can reduce the ability to absorb thyroid tumor treatment drugs, so you should not drink coffee or eat foods containing caffeine within 1 hour of taking the drug. Although not in the group of foods that need to be absolutely avoided, caffeine can cause rapid heartbeat, shortness of breath and affect the patient’s general health. Therefore, it is necessary to limit the consumption of drinks and foods containing caffeine.
6. Alcohol – The Enemy of the Thyroid
Alcohol not only inhibits the production of thyroid hormones but also damages thyroid cells. In addition, this is also a harmful agent to many organs in the body, accumulates toxins and can lead to many serious diseases. Therefore, people with thyroid disease need to stay away from alcohol to protect their health.
7. Iodine-Rich Foods
Both iodine excess and deficiency can cause thyroid dysfunction. If the patient is prescribed radioactive iodine treatment, it is necessary to avoid consuming foods rich in iodine beforehand so as not to reduce the effectiveness of the treatment. After treatment, it is also necessary to control the amount of iodine in the diet, especially foods such as seafood, seaweed, etc.
8. Hard Foods – Not Suitable After Surgery
After thyroid surgery, the digestive system has not fully recovered, so patients need to avoid hard, dry foods such as seeds, raw beans, beef jerky, dried squid, grilled meat, etc. These foods can cause difficulty swallowing, bloating, indigestion and even affect the surgical wound.
9. Limit foods high in gluten
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Gluten can irritate the intestinal lining, especially the small intestine, and affect the ability to absorb thyroid hormone replacement therapy. Foods high in gluten include wheat, barley, oats, and processed foods such as lunch meat, sausages, French fries, and beer.
Nutritionists recommend that people with thyroid tumors can still consume a moderate amount of whole grains such as oats and barley to ensure adequate nutrition but not increase the risk of excessive gluten absorption.
10. Avoid spicy and sour foods
Spicy spices such as pepper, chili, and seasoning powder can cause indigestion, affect the digestive system, and damage the lining of the throat. In particular, for people who have just had thyroid surgery, avoiding spicy foods will help stabilize the surgical wound and protect the throat better.
Superfoods to improve thyroid function
Berries
Berries such as strawberries, blueberries, and raspberries are rich in antioxidants, vitamins, and fibre. These nutrients are crucial for combating oxidative stress—one of the major problems with thyroid health. A 2022 study published in Biomedicine and Pharmacotherapy reveals that antioxidants can help manage thyroid dysfunction and support the immune system. Blank raspberries are packed with the highest amount of antioxidants, fibre, and very little sugar.
Apple
An apple a day might do more than just keep the doctor away, as it could also support your thyroid health. Apples are packed with fibre and important antioxidants such as quercetin, which helps reduce inflammation and support thyroid function. Moreover, apples can detoxify your body and help improve your thyroid function.
Brazil nuts
Brazil nuts are loaded with selenium, a trace element that plays a critical role in the production of thyroid hormones. According to a review in the journal Clinical Endocrinology,selenium also helps protect the thyroid gland from oxidative damage. Just a few Brazil nuts a day can help you meet your daily selenium requirement.
Avocado
Avocados are a rich source of healthy fats, which are essential for hormone synthesis, including thyroid hormones. They also contain antioxidants, magnesium, and fibre. The healthyfats in avocados can help maintain a healthy weight, which is crucial because thyroid disorders can often lead to weight issues.
Eggs
Eggs are among the few foods that naturally contain vitamin D, which helps regulate thyroid hormones. They are also a great source of iodine and selenium, both essential for thyroid hormone production and balance. Moreover, the high-quality protein in eggs helps maintain muscle mass, which can be affected by thyroid dysfunction.
Yoghurt
Yoghurt is rich in iodine, which is essential for thyroid function. It is also rich in probiotics, beneficial for gut health. A healthy gut can enhance the absorption of nutrients necessary for thyroid health and overall metabolism. The National Institutes of Health advises choosing plain, low-fat yoghurt or Greek yoghurt to fulfill iodine intake.
Pumpkin seeds
Pumpkin seeds are an excellent source of magnesium, zinc, and antioxidants. Zinc, in particular, plays a vital role in thyroid hormone synthesis. Regular consumption of pumpkin seeds ensures a healthy supply of these nutrients, which can help keep the thyroid functioning smoothly.
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