Carol Pruner, the famous 'Herb Lady,' said there has been a lot of demand for iodine tablets at her Sparks store.
"We've actually been inundated with phone calls with people saying: 'I can't get you on the phone,' because both lines have been busy continuously," Pruner said.
Pruner said she has plenty of products to help support the thyroid, including some containing iodine.
But state leaders said if you're concerned over radiation from Japan, you shouldn't be. They said radiation so far seems very unlikely to reach Nevada.
Iodine can also cause side effects or allergic reactions.
But Pruner said taken in the proper dosage, it is safe.
"If you take what's recommended on the bottle, you're just feeding the thyroid that's all you're doing."
She said she is ordering more iodine after the crisis in Japan.