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August 22, 2025
A Low Iodine Diet is a short-term eating plan designed for people preparing for radioactive iodine treatment, especially those with thyroid cancer or thyroid-related conditions. This diet helps reduce the body’s iodine levels, making treatment more effective. In this blog, we will explore what a low iodine diet is, its benefits, and a complete list of foods to eat and avoid.
A low iodine in diet limits iodine intake to about 50 micrograms or less per day.Iodine is mainly present in iodized salt, seafood, dairy, and processed foods. As a result, reducing iodine intake helps the thyroid gland absorb radioactive iodine more effectively during medical treatment.
Here are some foods allowed on a low iodine diet:
Fresh fruits (apples, bananas, grapes, oranges, melons)
Fresh vegetables (carrots, potatoes, onions, spinach, cucumbers)
Unsalted nuts and nut butters
Homemade bread without iodized salt
Fresh meat (chicken, beef, lamb, turkey) – in moderation
Egg whites (but avoid yolks)
Oils (olive oil, sunflower oil, vegetable oil)
Rice, oats, and pasta without added salt
Black coffee and tea (without milk or creamer)
To follow a low iodine avoid:
Iodized salt and sea salt
Seafood (fish, shrimp, seaweed, shellfish)
Dairy products (milk, cheese, butter, yogurt, ice cream)
Egg yolks
Processed foods (canned soup, fast food, packaged snacks)
Soy products (soy milk, tofu, soy sauce)
Improves effectiveness of radioactive iodine treatment
Reduces iodine in the thyroid gland
Helps doctors better evaluate thyroid function
May reduce thyroid hormone levels before treatment
Patients usually follow the low Restricted Salt Diet for 1–2 weeks before treatment and a few days afterward. Always consult your doctor or dietitian before starting this diet.
The low iodine plays a vital role in preparing patients for radioactive iodine therapy. By carefully choosing foods that are low in iodine and avoiding high-iodine foods, patients
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