1, spirulina is rich in iodine. Spirulina is a kind of nutritious seaweed, which contains a lot of iodine. The demand for iodine is relatively small, and only a small amount of iodine can meet the needs of the body every day. Therefore, eating spirulina can provide iodine needed by human body and reduce the demand for other foods rich in iodine, thus reducing the cost of buying these foods.
2. Organic iodized salt is more expensive. Compared with common edible salt, the price of organic iodized salt is higher. Therefore, if people can meet their needs for iodine by eating iodine-rich foods such as spirulina, they can avoid buying organic iodized salt, thus saving some expenses.