Many public health people say that iodized salt takes those laurels. Or maybe its the most bang for the buck, at an estimated $.05/person/year to prevent intel

Many public health people say that iodized salt takes those laurels. Or maybe its the most bang for the buck, at an estimated $.05/person/year to prevent intellectual and developmental problems. Guess it depends on exactly what you mean. https://en.wikipedia.org/wiki/Iodised_salt https://en.wikipedia.org/wiki/Iodised_salt