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Selenium - Wikipedia

Selenium is still used in a few types of DC power surge protectors and one type of fluorescent quantum dot. Selenium salts are toxic in large amounts, but trace amounts are necessary for cellular function in many organisms, including all animals. Selenium is an ingredient in many vitamins and other dietary supplements, including infant ...

Pronunciation: /sɪˈliːniəm/ ​(sə-LEE-nee-əm)Get Price
10 Nutritious Plant Foods Rich in Selenium - dietingwell

May 02, 2018 · Selenium is a trace mineral that the human body needs in tiny amounts. It is also an important antioxidant and an essential part of a healthy immune system. An adult needs 55 mcg of the mineral each day. In excessively high amounts, however, selenium is toxic to humans, so your daily intake shouldn't exceed 400 mcg.

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19 Interesting Selenium Facts - ThoughtCo

Selenium is essential for proper nutrition in many organisms, including humans and other animals, but is toxic in larger amounts and in compounds. Brazil nuts are high in selenium, even if they are grown in soil that is not rich in the element. A single nut provides enough selenium to .

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11 Selenium Toxicity Dangers You Can Easily Avoid

Jul 19, 2016 · Selenium toxicity is actually more common in livestock than people. This is particularly true in the western part of the United States where the soil is rich in selenium. High selenium content in soil is absorbed by plants and passed on to livestock. Selenium toxicity is generally not a widespread threat to humans.

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Selenium in Plants - Biocyclopedia

The question of whether or not selenium is a micronutrient for plants is still considered unresolved .Selenium has not been classified as an essential element for plants, but its role as a beneficial element in plants that are able to accumulate large amounts of it has been considered .Uptake and accumulation of selenium by plants is determined by the form and concentration of selenium, the ...

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Facts About Selenium | Live Science

Some plants, such as garlic and Brazil nuts, tend to accumulate selenium if they are grown in selenium-rich soil. One ounce of Brazil nuts — about six kernels — can provide as much as 543 ...

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Uptake of Available Selenium by Certain Range Plants1

SELENIUM 263. Table 1. Common name, sfage of growth, amount and form of added soil selenium, moisture content of plant, amounts of total, water-soluble, soluble inorganic, soluble organic, and insoluble selenium in various range. plants.

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Selenium Poisoning in Livestock - NWISRL Publications

Selenium Poisoning in Livestock By L.F. James, H.F. Maviand, and K.E. Panter ABSTRACT Selenium in certain soils may be taken up by plants in amounts sufficient to make forage toxic to animals. Seieniter-ous torage can be found in semiarid areas on soils t ypically .

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Distribution - Selenium in Nutrition - NCBI Bookshelf

Selenium is widely distributed in minute amounts in virtually all materials of the earth's crust, having an average abundance of about 0.09 ppm (Lakin, 1972). Its occurrence has been determined in a wide variety of rocks, minerals, lunar and volcanic materials, fossil fuels, soils, plant materials, and waters.

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Selenium — Health Professional Fact Sheet

The selenium content of soil affects the amounts of selenium in the plants that animals eat, so the quantities of selenium in animal products also vary [2,5]. However, selenium concentration in soil has a smaller effect on selenium levels in animal products than in plant-based foods because animals maintain predictable tissue concentrations of ...

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Signs & Symptoms of Selenium Poisoning | Livestrong

Selenium is a mineral that's essential to the body in trace amounts, mainly for synthesizing enzymes, but it can be toxic in large amounts. According to the "Doctor's Complete Guide to Vitamins and Minerals," the tolerable upper intake level of selenium is set at 400mcg daily, with 800mcg daily potentially causing toxicity and a dose of 5mg considered lethal for most people.

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11 Selenium Toxicity Dangers You Can Easily Avoid

Jul 19, 2016 · Selenium toxicity is actually more common in livestock than people. This is particularly true in the western part of the United States where the soil is rich in selenium. High selenium content in soil is absorbed by plants and passed on to livestock. Selenium toxicity is generally not a widespread threat to humans.

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The 7 Best Vegetarian Foods for Selenium

Apr 14, 2014 · 1. Brazil Nuts. Without a doubt, Brazil nuts are one of the best sources of selenium! Tasty, delicious, and loaded; one study showed that just two brazil nuts per day for 12 weeks raised selenium levels to a normal range. 1/2 oz. contains a whopping 268 mcg, 479% of .

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Plants Poisonous to Livestock - Cornell University ...

Distribution of selenium is variable throughout the United States. Most of the Eastern and Northwestern areas of the country have low selenium in the soil and in the plants, while in the Midwest, there are adequate amounts of selenium in the forages. For a more detailed map: Map of Selenium Status in US.

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Selenium - an overview | ScienceDirect Topics

Selenium is converted by plants from these inorganic to organic forms, including the major form l-selenomethionine and, in lesser amounts, l-selenocysteine. Therefore, selenium concentrations in foods are dependent on the selenium content of the soil in which the foods or ingredients were grown.

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Selenium in diet: MedlinePlus Medical Encyclopedia

Selenium is a trace mineral. Your body only needs it in small amounts. Selenium helps your body make special proteins, called antioxidant enzymes. These play a role in preventing cell damage. Some research suggests that selenium may help with the following: Prevent certain cancers Protect the body ...

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Selenium in plants and soil - plantprobs

Selenium Toxicity. Plants suffering from selenium toxicity may be stunted and may die earlier than usual. Leaves of affected plants may exhibit chlorosis or may dry and wither. Some plants can safely accumulate very large amounts of selenium while others cannot so do not be surprised if adjacent plants are affected in different ways. A soil ...

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Selenium Benefits, Foods, Dosage and Side Effects - Dr. Axe

Aug 22, 2019 · Selenium is a trace mineral that is found naturally in the soil and also appears in certain high-selenium foods. There are even small amounts in the water you drink. What is selenium good for in the body? Something that makes selenium nutrition valuable is its role in antioxidant activity.

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Removal of Aqueous Selenium by Four Aquatic Plants

Cattails and swamp lily plants retained the highest amounts of selenium in their tissues. However, duckweed ac-cumulated the most selenium on a fresh-weight basis, accu-mulating as much as 4.95% selenium per mg of biomass. In contrast, cattails and swamp lilies accumulated only between 0.002 to 0.003% selenium per mg of dry biomass. More at-

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Selenium - an overview | ScienceDirect Topics

Selenium is found in a variety of foods, including both plant and animal sources, such as fish, shellfish, organ meats, red meat, chicken, eggs, and milk; the amount of selenium from plant sources depends on the amount of selenium in the soil in which the plant grew.

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