Thyroid hormone replacement has been used for more than a century to treat hypothyroidism. Natural thyroid preparations (thyroid extract, desiccated thyroid, or thyroglobulin), which contain both thyroxine (T4) and triiodothyronine (T3), were the first pharmacologic treatments available and dominated the market for the better part of the 20th century. Dosages were adjusted to resolve symptoms and to normalize the basal metabolic rate and/or serum protein-bound iodine level, but thyrotoxic adverse effects were not uncommon. Two major developments in the 1970s led to a transition in clinical practice: 1) The development of the serum thyroid-stimulating hormone (TSH) radioimmunoassay led to the discovery that many patients were overtreated, resulting in a dramatic reduction in thyroid hormone replacement dosage, and 2) the identification of peripheral deiodinase-mediated T4-to-T3 conversion provided a physiologic means to justify l-thyroxine monotherapy, obviating concerns about inconsistencies with desiccated thyroid. Thereafter, l-thyroxine mono-therapy at doses to normalize the serum TSH became the standard of care. Since then, a subgroup of thyroid hormone–treated patients with residual symptoms of hypothyroidism despite normalization of the serum TSH has been identified. This has brought into question the inability of l-thyroxine monotherapy to universally normalize serum T3 levels. New research suggests mechanisms for the inadequacies of l-thyroxine monotherapy and highlights the possible role for personalized medicine based on deiodinase polymorphisms. Understanding the historical events that affected clinical practice trends provides invaluable insight into formulation of an approach to help all patients achieve clinical and biochemical euthyroidism.
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.
Essential fatty acids found in fish oil are critical for brain and thyroid function. DHA and EPA omega-3s found in fish oil are associated with a lower risk for thyroid symptoms, including anxiety, depression, high cholesterol, inflammatory bowel disease, arthritis, diabetes, a weakened immune system and heightened autoimmune disease. Omega-3 fish oil such as cod liver oil can also help balance levels of omega-6s in the diet, which is important for ongoing health.
Do you see “gluten-free”, “dairy-free” etc. popping up at the health stores today? This is because many people get off the “big five” (gluten, dairy, corn, eggs and soy) and experience significant changes. To find the culprits, I always start off with an Elimination Diet (I teach how to do the Elimination Diet at this free workshop) and this produces clear, unbiased results. You can also get a food intolerance test (not allergy; it’s different) done but they are far from accurate. Gluten is an infamous food for contributing to thyroid conditions, and eliminating it is key. However, often times, you would need to cut out more than just gluten if you wish to shape your diet for thyroid fitness.
An unhealthy gut environment can contribute to nutrient deficiencies and raise autoimmune activity in the body. Gut inflammation can be triggered by food sensitivities or allergies, including those to gluten and dairy. Other causes of a damaged gut are high stress levels, toxin overload from diet and the environment, and bacterial imbalances. When leaky gut occurs, small particles that are normally trapped inside the gut start to leak out into the bloodstream through tiny openings in the gut lining, which creates an autoimmune cascade and a series of negative symptoms.
One of the most powerful things you can do to help your health and metabolism is to drink enough water. Water helps your metabolism function more efficiently and can help reduce your appetite, get rid of water retention and bloating, improve your digestion and elimination, and combat constipation. Some experts even say that we should drink one ounce of water per pound of scale weight.
Why does this happen? The immune system mistakenly thinks that the thyroid cells are not a part of the body, so it tries to remove them before they can cause damage and illness. The problem is that this causes widespread inflammation, which can result in many different problems. 90 percent of people with hypothyroidism have Hashimoto’s that inflames the thyroid gland over time, but this isn’t the only cause of hypothyroidism.
Levothyroxine tablets come in 12 different strengths, and it is essential to take them in a consistent manner every day. A dose of thyroid hormone that is too low may fail to prevent enlargement of the thyroid gland, allow symptoms of hypothyroidism to persist, and be associated with increased serum cholesterol levels, which may increase the risk for atherosclerosis and heart disease. A dose that is too high can cause symptoms of hyperthyroidism, create excessive strain on the heart, and lead to an increased risk of developing osteoporosis.
The thyroid is the organ with the highest selenium content in the whole body. Selenium is necessary for the production of the T3 thyroid hormone and can reduce autoimmune affects. In patients with Hashimoto’s disease and in pregnant women with thyroid disturbances, selenium supplementation decreases anti-thyroid antibody levels and improves the structure of the thyroid gland.
The first step in treatment of hypothyroidism is to eliminate the effects and causes of the thyroid dysfunction, such as inflammation, overuse of medications, nutrient deficiencies, and changes in hormones due to stress. The hypothyroidism diet eliminates foods that can cause inflammation and immune reactions and instead focuses on foods that help heal the GI tract, balance hormones, and reduce inflammation.
Hypothyroidism is a condition related to having an underactive thyroid gland that doesn’t properly make or release thyroid hormones. The thyroid gland normally releases many crucial hormones that travel throughout the bloodstream and reach receptors that are found throughout the whole body, so a disturbance in thyroid function can cause widespread, noticeable health problems.
If you do choose to eat gluten, be sure to choose whole-grains varieties of bread, pasta, and rice, which are high in fiber and other nutrients and can help improve bowel irregularity, a common symptom of hypothyroidism. Also be sure to take your hypothyroidism medication several hours before or after eating high-fiber foods, to prevent them from interfering with the absorption of your synthetic thyroid hormone.
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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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