LifestyleNutrition and hypothyroidism: surprising foods to steer clear of

Nutrition and hypothyroidism: surprising foods to steer clear of

People with thyroid disease need to limit their tomato intake.
People with thyroid disease need to limit their tomato intake.
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10:58 AM EDT, November 1, 2023

The importance of a well-rounded diet cannot be overstated when it comes to managing hypothyroidism. Although it cannot replace pharmacotherapy, a beneficial diet can support thyroid function and mitigate the symptoms of the disease when selected thoughtfully. So, what food products should be avoided by those with hypothyroidism?

Hypothyroidism is a malady where the thyroid gland fails to produce sufficient thyroid hormones, resulting in a slower metabolism. This can lead to symptoms like fatigue, weight gain, dry skin, and persistent intolerance to cold.

The crux of treating this disorder lies in utilizing medicines filled with synthetic thyroid hormones. Alongside medication, it's pivotal for individuals with hypothyroidism to follow a diet that contributes to the effective function of the thyroid gland.

Foods that should be avoided

Raw cruciferous vegetables

This category includes vegetables like cabbage, cauliflower, turnips, and broccoli. Despite being rich in fiber and other nutrients, these foods can hinder the production of thyroid hormones, particularly when the body is grappling with iodine deficiency.

Research suggests that digesting these vegetables can impair the thyroid's ability to use iodine, which is crucial for the gland's operation.

Fortunately, cooking these vegetables can greatly reduce their goitrogenic compounds—substances responsible for obstructing iodine utilization—making it safe for individuals with hypothyroidism to consume them when well-cooked.

Tomatoes

Tomatoes contain alkaloids like tomatidine which, when combined with sugars, form a glycoalkaloid known as tomatine. High concentrations of tomatine can excessively stimulate the immune system, leading to the production of antibodies that harm thyroid cells.

As a result, it's recommended that those with hypothyroidism limit their tomato intake. However, this doesn't necessarily mean they have to be eliminated entirely from the diet.

Soy

Soy has been long associated with potential adverse effects on the thyroid due to certain compounds it contains. Current research suggests that consuming soy products may interfere with the absorption of medications taken by those with hypothyroidism.

Caffeine

A study published in the "Thyroid" journal reports that caffeine can also impede the absorption of replacement thyroid hormones. Therefore, those with hypothyroidism are advised to wait at least 30 minutes after medicating before indulging in a cup of coffee.

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