Why iodized salt?

Question

Is it better for you, and if so, or if it isn't, why?

Answer 1

When iodized salt was first introduced in the U.S. there was some concern about potential toxicity from the general use of iodized salt, notably an increase in hyperthyroidism. Studies reporting adverse effects of iodized salt showed the following:
Studies in Michigan and Ohio showed no case of hyperthyroidism among children using iodized salt regularly . Four children in Michigan who had nodular hyperplastic goiters with definite signs of toxicity had never used iodized salt or had used only noniodized salt since the depression .

There was a report about an increase in toxic nodular goiter, number of total thyroidectomies, and yearly death rate during the three year period (1925-1927) after iodization of salt began in Michigan .The increase was transient and both I number of thyroidectomies and death rate from goiter declined rapidly after 1927 despite continued use of iodized salt. By 1933, death rate from goiter was lower than the pre-iodization period. The report did not present other important information that might have played a bigger role in the increase such as whether toxic nodular goiter was present in these patients before the introduction of iodized salt, other iodine-containing compounds used or iodine therapies received by the patients, and any epidemics of disease or other conditions that might have contributed to the observed increase. It is hard to know what role iodized salt played in the reported adverse effects.

In 1927-1928 a study was conducted for the whole adult goiter population in several counties in Michigan where the majority of the population had been using iodized salt for four years. The results showed that the percentage of hyperthyroidism among adults with goiter was much smaller (4. 1 %) among users of iodized salt as compared to the nonusers of iodized salt before the onset (17-56%). Also, many adults with hyperthyroidism who used iodized salt had other conditions that seemed more important in the etiology of hyperthyroidism than the use of iodized salt such as pregnancy, severe throat infection, and severe nerve strain or shock which is often seen as a forerunner of this disease

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Answer 2

Iodine is a necessary nutrient. Iodized salt was introduced to prevent goiter, an enlargement of the thyroid gland due to lack of iodine in the diet.

Answer 3

Your body needs small amounts of iodine to help prevent gout. Iodine is not common in many foods, and is not in most foods that get processed, so they started adding it to salt, sort of like adding flouride to the water for your teeth.

If you ate a healthy diet, you would not need the extra iodine, but it takes a rather large does to be harmful so most people just don't worry about it.

Answer 4

The human body needs Iodine. Lack of enough iodine (deficiency) may occur in places that have iodine-poor soil. Many months of iodine deficiency in a person's diet may cause goiter or hypothyroidism. Without enough iodine, the thyroid cells and the thyroid gland become enlarged.

Answer 5

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Answer 6

We need the iodine it helps prevent goiters.