Can patients with hyperthyroidism eat iodine-containing foods?

Jan 22, 2025 Source: Cainiu Health

Dr. Yang Ziqi

Introduction

Under normal circumstances, patients with hyperthyroidism are generally advised not to consume iodine-containing foods. Hyperthyroidism is an endocrine disorder caused by excessive synthesis and release of thyroid hormones by the thyroid gland, leading to increased metabolic activity and sympathetic nervous system stimulation. Patients may experience symptoms such as palpitations, hand tremors, excessive sweating, irritability, easy agitation, increased appetite, and weight loss.

Generally speaking, hyperthyroidism refers to an overactive thyroid gland. Patients with hyperthyroidism usually are not advised to consume iodine-containing foods. Detailed explanation is as follows:

Hyperthyroidism is an endocrine disorder caused by excessive production and release of thyroid hormones by the thyroid gland, leading to increased metabolic rate and sympathetic nervous system stimulation. Patients may experience symptoms such as palpitations, hand tremors, excessive sweating, irritability, increased appetite but weight loss. Iodine is one of the essential raw materials for the thyroid gland to synthesize thyroid hormones.

When suffering from hyperthyroidism, consuming excessive iodine-containing foods may promote further synthesis of thyroid hormones, possibly worsening the condition and hindering disease management and treatment. Excessive iodine intake can intensify the synthesis and release of thyroid hormones, aggravating hyperthyroid symptoms. Moreover, long-term excessive iodine intake may increase the risk of complications associated with hyperthyroidism.

Patients with hyperthyroidism should avoid iodine-rich foods such as kelp, nori, shrimp, and other seafood products. These foods contain high levels of iodine, and patients with hyperthyroidism should avoid consuming them as much as possible. It is recommended to choose high-quality protein sources such as chicken, eggs, milk, and to consume legumes and soy products in appropriate amounts to supplement plant-based proteins.

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