Selenium is critical for thyroid Complete Thyroid Review hormone metabolism. It is part of the enzyme necessary for conversion of T4 hormone into the active form T3. Low selenium levels can lead to thyroid damage and hypothyroidism. However, high levels can do the same thing. Therefore, if you have thyroid issues, it is extremely important to monitor your thyroid function along with your dietary intake of selenium. A skilled physician or nutritionist will help you adjust and determine the right dosage of vitamins and supplements required for your thyroid to function at its best level.
We get selenium from whole grains, some seafood, most meats, and nuts. The amount of selenium we get from grains and nuts depends on the selenium content of the soil that they were grown in. The content of selenium in meat depends on the amount present in the plants that the animals fed on. Levels of selenium in soil vary so much from region to region that it is very hard to tell how much we are actually getting.
Brazil nuts have an unusually high amount of selenium, as much as eight hundred times the daily requirement per ounce. If you do eat Brazil nuts, do so in moderation and watch for side effects of having too much selenium in your diet. Hair loss, horizontal white streaking or blotching of the fingernails, garlic breath, gastrointestinal disturbance, fatigue, irritability, and flushing of the face are signs of too much selenium.
The anti-viral, antioxidant and antibiotic properties of selenium make it useful for maintaining a healthy immune system and is thought to help prevent heart disease and certain cancers. Depletions can occur when you have gastrointestinal problems that cause selenium not to be absorbed. Selenium is also destroyed in foods that are processed or refined. This can lead to autoimmune problems and thyroid problems.
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