Too little iodine, and thus too little thyroid hormone, can lead to mental retardation, dwarfism, hearing loss, and other problems. Later in life, thyroid hormone controls metabolism.
Adults who don't take in enough iodine can develop a goiter a swelling of the butterfly-shaped thyroid gland in the neck , and the low output of thyroid hormone can lead to sluggish metabolism, poor thinking skills, infertility, thyroid cancer, and other conditions.
Goiter was once a big problem in wide swaths of the United States. In the early s, Dr. David Marine of the Cleveland Clinic described goiter as "one of the most important causes of physical and mental degeneracy with which society has had and still has to deal.
Borrowing an idea from the Swiss, a group of U. Iodized salt was first sold in Michigan in May , and across the nation later that year. In the U. In the s and s, the use of iodine-based disinfectants in the dairy industry and iodine-based conditioners in the commercial baking industry put many Americans on track to getting too much iodine.
The situation has stabilized in recent years, with national nutrition surveys showing that most Americans get enough iodine, and only small numbers get too little or too much.
Current dietary guidelines recommend that men and women ages 19 and older get micrograms of iodine a day. Women who are pregnant should get micrograms, and women who are breast-feeding an infant should get micrograms. Most Americans take in more sodium than they need. Almost all of it comes from salt. Salt, also known as sodium chloride, is abundant in most people's diets. This article explores whether salt is healthy or unhealthy.
Salt has a bad reputation, but some evidence shows it may not have much impact on heart disease. This article takes a look at the research. This article compares several different types of salt, including himalayan salt, kosher salt, celtic salt, regular table salt and sea salt. An iodine deficiency can cause uncomfortable and even severe symptoms, which often resemble those of hypothyroidism. Here are 10 signs and symptoms of….
One-third of people are at risk of iodine deficiency. These 9 iodine-rich foods can help keep you healthy. Some people think that the amount of sodium you consume plays a role.
Craving salt may be a sign of a medical condition. Here are seven reasons you may be craving salt. Sodium chloride—also known as salt—is used in medical treatments such as IV infusions and catheter flushes.
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Does putting cabbage relieve swelling and stop breastfeeding? The goiter problem was gone almost overnight. Iodine deficiency can lead to more than just goiter. According to the National Bureau of Economic Research , iodine deficiency is the leading cause of preventable mental retardation in the world today.
In fact, it was found that iodization actually raises IQ levels. News U.
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