Can patients with thyroid nodules grade 3 eat seafood?

Jul 22, 2025 Source: Cainiu Health

Dr. Yang Chuanjia

Introduction

In general, patients with thyroid nodules classified as category 3 can consume seafood, but should do so in moderation. Patients with thyroid category 3 nodules should strictly control their seafood intake and avoid consuming excessive amounts at one time, especially those who have hyperthyroidism, as they need to be particularly cautious about their consumption of iodine-rich seafood. Additionally, fresh and hygienic seafood should be selected.

Generally, patients with grade 3 thyroid nodules can consume seafood, but should do so in moderation. Detailed analysis is as follows:

Seafood comes in many varieties. Ocean fish such as salmon and cod contain high-quality protein, unsaturated fatty acids, and various vitamins and minerals. These nutrients provide essential nutritional support for the body, helping maintain normal physiological functions and immunity. For patients with grade 3 thyroid nodules, maintaining good physical condition is beneficial for stabilizing the condition. Consuming such nutrient-rich seafood in moderation can supply necessary nutrients and generally will not adversely affect the nodule. Additionally, some seafood like shrimp and crab contains a certain amount of iodine, but as long as consumption is controlled and excessive intake within a short period is avoided, it typically will not lead to excessive iodine intake and will not significantly affect thyroid function or the nodule.

Patients with grade 3 thyroid nodules must strictly control their seafood intake and avoid consuming too much at once. This is especially important for those who already have hyperthyroidism, who should be particularly cautious about controlling their intake of iodine-rich seafood. Also, fresh and hygienic seafood should be selected to avoid gastrointestinal discomfort caused by spoiled seafood. Furthermore, patients should have regular follow-up examinations of their thyroid nodules and thyroid function, adjusting their diet according to test results. If doctors specifically recommend limiting seafood consumption, patients should follow medical advice.

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