Can exercise after I-131 treatment help with weight loss?
Generally, exercise after I-131 treatment can help with weight loss, but excessive exercise should be avoided. The detailed explanation is as follows:

I-131 treatment is primarily used for treating thyroid-related diseases such as hyperthyroidism and thyroid cancer. After I-131 treatment, some patients may experience weight gain due to a slowed metabolism caused by hypothyroidism. As thyroid function gradually recovers, metabolism will also return to normal. At this time, appropriate dietary control and moderate exercise can promote fat burning and aid in weight loss. Exercise-induced weight loss can improve body shape, reduce body fat content, lower blood triglyceride levels, thereby alleviating symptoms of fatty liver and regulating blood lipid levels. Weight loss should be done in moderation to avoid causing discomfort.
Patients should wait at least 2 hours after I-131 treatment before eating. On the day of treatment, drink plenty of water to promote iodine excretion from the body. High-iodine foods such as kelp and nori should be avoided for one month to prevent interference with treatment effectiveness.