Hidden Micronutrient Deficiencies: Selenium, Magnesium, and Potassium
Selenium, magnesium, and potassium deficiencies are far more widespread than standard testing reveals, and their effects range from impaired thyroid function to cardiovascular risk. Understanding how these gaps arise, and why conventional measures miss them, is essential for interpreting symptoms that often go unexplained.
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Created with AIMicronutrient deficiencies rarely announce themselves with dramatic symptoms. More often, they manifest as fatigue, muscle cramps, anxiety, elevated blood pressure, or a metabolism that simply refuses to respond as expected. Three minerals in particular, selenium, magnesium, and potassium, illustrate how modern diets, depleted soils, and inadequate testing can leave significant physiological gaps hidden in plain sight.
Created with AISelenium and the Thyroid Conversion Problem
The thyroid gland produces mostly T4, the inactive storage form of thyroid hormone. For T4 to drive metabolism, energy, and fat utilization, it must be converted to the active form, T3, by a family of enzymes called deiodinases. According to Thomas DeLauer, these enzymes are selenoproteins: they cannot function properly without adequate selenium. This means that even a person with apparently normal thyroid hormone levels may experience sluggish metabolism if selenium is insufficient to support the conversion step.
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