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Although a Recommended Dietary Allowance of selenium has been established, it is difficult to recommend a standard selenium dosage. However, most people in the United States get plenty of selenium solely through their food consumption. Typically, most adult multivitamins contain 55 mcg or less of selenium per dose. If you are considering using a selenium supplement, make sure it is made by a reputable manufacturer.
Selenium Dosage: An IntroductionIt is difficult to recommend a standard selenium dosage. Although an RDA (Recommended Dietary Allowance) has been determined for selenium, the dietary intake can vary, based on the diet and geographic location. Some parts of the world have low soil levels and, therefore, low food levels of selenium. However, most people in the United States get plenty of selenium through food.
What Is a Reasonable Selenium Dose?The Institute of Medicine has established an RDA for selenium. Also, for nutrients that can cause toxicity, a "Tolerable Upper Intake Level" (UL) is given. Refer to the following table for the RDA and UL values for selenium.
Age RDA (Recommended Dietary Allowance) UL (Tolerable Upper Intake Level) 1 to 3 years 20 mcg per day 90 mcg per day 4 to 8 years 30 mcg per day 150 mcg per day 9 to 13 years 40 mcg per day 280 mcg per day 14 years and older 55 mcg per day 400 mcg per day Pregnant women 60 mcg per day 400 mcg per day Breastfeeding women 70 mcg per day 400 mcg per day