i am in cali as well and have the same question. Lugol's (2% which i have) is 4% potassium iodide, 2% iodine. hoping someone will have further comments on the protective capabilities of the Lugol's against potential radiation fallout. obviously the body can only be protected to a certain degree but want to hear anyone's quick feedback. many stores are sold out of kelp, liquid kelp but if a person does not have Iodide saturated in their system, no protection is in place if the fallout is imminent. still researching..