If you're thinking about upping your intake of salty, processed foods just to fit more iodine into your diet, think again. More than 75% of our dietary sodium intake comes from restaurant, pre-packaged, and processed fare. (In fact, you'd probably be surprised to learn just how many foods are actually just hidden salt traps.) But "manufacturers don't have to use iodized salt in their products," says Ilic. And according to the National Institutes of Health's Office of Dietary Supplements, they "almost never" do. The upshot: You may be taking in too much sodium (which can set you up for high blood pressure, then heart disease), minus the iodine.
To find out if you have hypothyroidism, your doctor will run blood tests to check for levels of the hormones known as T4 (thyroxine) and TSH (thyroid-stimulating hormone). Hypothyroidism is diagnosed in your thyroid test when TSH is high. Sometimes, TSH can be high, but the thyroid is still producing enough hormones. This condition is referred to as subclinical (or mild) hypothyroidism.
Goitrogens are naturally occurring substances in certain foods that interfere with the production of thyroid hormones (the hormones that people with hypothyroidism lack). They include some of the most commonly consumed foods of the health-conscious community: broccoli, cauliflower, kale, spinach, radishes, soybeans, peanuts, pine nuts, peaches and millet. The good news is that many health professionals believe that cooking may inactivate goitrogens.
In some areas of the world, iodized salt is an essential way to prevent iodine deficiency, cretinism, and mental retardation due to iodine deficiency in pregnant women. In the United States, however, many people have limited their salt intake or stopped using iodized salt, and you need enough iodine for the thyroid to function properly. An excess of iodine, however, is also linked to increased risk of thyroid disease, so staying in range and avoiding deficiency or excess is essential.
The thyroid gland is located at the base of the neck just below the Adam's apple. The thyroid produces two main hormones called T3 and T4 which are transported in the blood to all parts of the body. These hormones control the rate of many activities in your body including how fast calories are burned and how fast or slow a person’s heart rate is. Combined, these activities are often referred to as the metabolism. When thyroid disease occurs and the thyroid gland is compromised it may produce too few hormones and this can result in the metabolism slowing down. This condition is often referred to as an underactive thyroid function or hypothyroidism.
However, iodine intake has dropped during the past few decades. Americans get approximately 70% of their salt intake from processed foods that, in the United States and Canada, generally don’t contain iodine. A 2012 Centers for Disease Control and Prevention report indicates that, on average, Americans are getting adequate amounts of iodine, with the potential exception of women of childbearing age.10
Losing weight can help a great deal in warding off hypothyroidism. It is a fact that obese people are more prone to life-threatening diseases like hypothyroidism. Eating a well-balanced and high-iodine diet along with proper exercise can maintain a healthy and hypothyroidism-free life. Dieting and exercising will not only help your thyroid to function well; it will also give your entire body a healthy make over.
In humans, a factor associated with response to combination therapy in a large clinical trial is the Thr92Ala polymorphism in the type 2 deiodinase gene (DIO2), wherein the subpopulation of patients with this genetic alteration had improved well-being and preference for combination therapy (7). This has led investigators to consider whether this polymorphism could confer a defect in the D2 pathway, but normal Thr92AlaD2 enzyme kinetics have been demonstrated (73). Only recently has the Thr92AlaD2 protein been found to have a longer half-life, ectopically localize in the Golgi apparatus, and significantly alter the genetic fingerprint in cultured cells and in the temporal pole of the human brain without evidence of reduced thyroid hormone signaling (74). The significance of these studies transcends the thyroid field—this polymorphism has now been associated with a constellation of diseases, including mental retardation, bipolar disorder, and low IQ (75). If hypothyroid carriers of Thr92AlaD2 benefit from alternate therapeutic strategies in replicate studies, then personalized medicine—based on genotype— may have a role.
Having a thyroid condition is no picnic, but you're not alone with this health issue. According to the American Thyroid Association, more than 12 percent of the population may end up dealing with a thyroid condition at some point in their lives. And thyroid issues can be sneaky: Of the nearly 20 million Americans living with the disease, as many as 60 percent don't even realize they have it.
Please Note: The material on this site is provided for informational purposes only and is not medical advice. Always consult your physician before beginning any diet or exercise program.
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