It is not recommended.
The thyroid needs to be “iodine starved” before radioactive iodine (I) treatment so that it can fully absorb radioactive iodine (I) during radiation therapy, releasing beta radiation to produce internal irradiation, which kills residual cancer cells. If more iodine is consumed during radioactive iodine (I) therapy, the thyroid gland’s intake of radioactive iodine (I) will be limited, thus affecting the effectiveness of the treatment. Although eggs contain less iodine (22.5 µg/100 g) than seafood, it is recommended to abstain from eggs during treatment in order to avoid compromising the effectiveness of radioactive iodine(I) therapy.