12 Foods to Avoid for Thyroid Patient

This article is reviewed by an expert

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What food to avoid in thyroid? If this is something you have been wondering, then this article is for you! The thyroid is a gland that regulates metabolism in our body. It secretes hormones that affect almost every cell and organ in the body. When the thyroid gland is not functioning properly, it can cause an imbalance of hormones leading to conditions like hypothyroidism or hyperthyroidism. Diet plays a crucial role in managing thyroid-related disorders, and certain foods can exacerbate or improve symptoms. In this article, we will discuss 12 thyroid foods to avoid.

Foods to Avoid for Thyroid Patients

  1. Soy Products: Soy products like tofu, soy milk, and edamame contain phytoestrogens, which can interfere with thyroid hormone production. These phytoestrogens can also inhibit the absorption of iodine, which is essential for thyroid hormone production. A study found that soy products can significantly reduce thyroid hormone levels in healthy individuals [1].
  2. Cruciferous Vegetables: Cruciferous vegetables like cabbage, broccoli, cauliflower, and Brussels sprouts contain goitrogens. These naturally occurring substances can interfere with thyroid hormone production. A review of studies concluded that cruciferous vegetables can be problematic for individuals with iodine deficiency [2]. It is advisable to limit their consumption or cook them before eating.
  3. Gluten: Gluten is a protein found in grains like wheat, barley, and rye. A study found that individuals with autoimmune thyroid disease have a higher prevalence of gluten intolerance [3]. Avoiding gluten may reduce inflammation and improve thyroid function in such cases.
  4. Coffee: Coffee contains caffeine, which can interfere with thyroid hormone production and absorption. A study found that drinking coffee can reduce the absorption of levothyroxine, a synthetic thyroid hormone medication [4]. It is advisable to wait at least an hour after taking thyroid medication before consuming coffee.
  5. Alcohol: Alcohol can affect the liver, which is responsible for converting thyroid hormones into their active form. Chronic alcohol consumption can also lead to hypothyroidism. A study found that alcohol consumption is associated with an increased risk of autoimmune thyroid disease [5].

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  1. Sugary Foods: Consuming excessive amounts of sugar can lead to weight gain, which can aggravate thyroid-related symptoms. A study found that individuals with hypothyroidism tend to consume more sugary foods than healthy individuals [6]. It is advisable to limit the consumption of sugary foods and opt for healthier alternatives.
  2. Processed Foods: Processed foods like canned goods, frozen meals, and snacks often contain high amounts of sodium, which can lead to water retention and worsen thyroid-related symptoms. A study found that consuming a high-sodium diet can interfere with thyroid hormone production and increase the risk of hypothyroidism [7]. Opt for fresh, whole foods instead.
  3. Fatty Foods: Consuming excessive amounts of fatty foods can lead to weight gain, which can worsen thyroid-related symptoms. A study found that individuals with hypothyroidism tend to consume more fatty foods than healthy individuals [6]. Opt for healthier fats like those found in nuts, seeds, and avocados.
  4. Dairy Products: Some studies suggest that consuming excessive amounts of dairy products can interfere with thyroid hormone production. However, other studies have found no significant association between dairy consumption and thyroid function [8]. It is advisable to consume dairy products in moderation and monitor their effects on thyroid-related symptoms.

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  1. High-Fibre Foods: Consuming excessive amounts of high-fibre foods like beans, lentils, and whole grains can interfere with thyroid hormone production and absorption. A study found that consuming a high-fibre diet can reduce thyroid hormone levels in healthy individuals [9]. It is advisable to consume these foods in moderation and cook them before eating.
  2. Refined Vegetable Oils: Refined vegetable oils like soybean oil, canola oil, and corn oil are high in omega-6 fatty acids, which can lead to inflammation. Chronic inflammation can interfere with thyroid hormone production and worsen thyroid-related symptoms. Opt for healthier fats like those found in olive oil, coconut oil, and avocado oil.

In conclusion, managing thyroid health through a proper diet is essential for overall wellness. Avoiding or limiting certain foods such as soy-based products, excess iodine, sea vegetables, artificial sweeteners, caffeine, sugary foods, and refined carbohydrates can help reduce symptoms and improve thyroid function. Nutrient-dense whole foods such as garlic, selenium-rich foods, and Vitamin D-rich foods are beneficial for thyroid health.

It is important to work with a healthcare provider to determine the best dietary approach for individual needs. Additionally, making significant changes to one’s diet can affect thyroid medication dosage, so it is crucial to discuss any dietary changes with a healthcare provider.

Maintaining a healthy weight through diet and exercise is also essential for thyroid health. A healthy diet, coupled with regular physical activity, can help manage weight and improve overall thyroid function.

In summary, making small changes to diet and lifestyle can help manage thyroid symptoms and improve overall health. By avoiding or limiting certain foods and including nutrient-dense whole foods, people with thyroid conditions can support their thyroid health and lead healthy lives.

Disclaimer: This article is written from a lifestyle perspective 

References:

  1. https://pubmed.ncbi.nlm.nih.gov/16571087/
  2. https://pubmed.ncbi.nlm.nih.gov/23436995/
  3.  https://pubmed.ncbi.nlm.nih.gov/14583410/
  4. https://pubmed.ncbi.nlm.nih.gov/21552597/
  5. https://pubmed.ncbi.nlm.nih.gov/33434895/
  6. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6776564/
  7. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4712861/
  8.  https://pubmed.ncbi.nlm.nih.gov/33372162/
  9. https://pubmed.ncbi.nlm.nih.gov/33482623/
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Dr. Deepa Kadam

Dr. Deepa has over 25 years of experience making her one of the notable medical professionals in the field of Ayurveda with expertise in Ayurvedic pharmacology.