Selenium is an essential component of various enzymes and proteins, called selenoproteins that help to make DNA and protect against cell damage and infections; these proteins are also involved in reproduction and the metabolism of thyroid hormones.
What is selenium?
Selenium is a trace element that is naturally present in many foods, added to others, and available as a dietary supplement. It’s only needed in small amounts but plays a major role in important processes in our body, including metabolism and thyroid function. Selenium is an essential mineral, meaning it must be obtained through your diet. The amount of selenium in food depends on the concentration of the soil and water where it grew.
Why do I need selenium?
Selenium is a component of selenoproteins and enzymes. These have antioxidant properties that help to break down peroxides, which can damage tissues and DNA, leading to inflammation and other health problems.
What are the symptoms of selenium deficiency?
The symptoms of selenium deficiency include:
· Nausea or vomiting
· Headaches
· Altered mental state or confusion
· Lethargy
· Seizures
· Coma
Who is at risk for severe deficiency?
The following groups are among those most likely to have inadequate intakes of selenium.
1) People living in low-selenium regions also eat a primarily plant-based diet. The risk is further increased in people living in these areas who eat a vegetarian or vegan diet
2) People with HIV. The virus can lead to diarrhea, malabsorption of nutrients, and decreased appetite.
3) People with kidney failure undergoing dialysis. The dietary restrictions required with kidney failure can also decrease overall food intake, leading to a risk of selenium deficiency.
What are some good selenium sources?
Low serum levels of selenium have been associated with an increased risk of autoimmune thyroiditis, increased incidence of cancer, heart disease and hypothyroidism. Selenium also has an important role in the health of your immune system and can oxidize thiol groups in viruses rendering them unable to penetrate cell membrane. This antioxidant helps lower oxidative stress in your body, which reduces inflammation and enhances your immunity.
TOP 10 Selenium RICH foods:
Brazil nuts. 1 kernel has > 100% of RDA
Seafood: Salmon, halibut, red snapper, tuna and sardines
Crustaceans like shrimp
Green bananas
Iceberg lettuce
Mushrooms
Spinach
Carrots
A2 milk
Eggs
How much selenium do I need?
The recommended Dietary Allowance (RDA) for adult men and women 19+ years of age is 55 micrograms daily. Teenagers between 14-18 years of age need 55 micrograms daily. Children between 1-3 years of age, 4-8 years of age, and between 9-13 years of age need 20, 30, and 40 micrograms of selenium per day, respectively. Pregnant women and lactating mothers require about 60 and 70 micrograms daily, respectively.
Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The contents of this website are based upon the views of Dr. Walker and his experience. This product is not intended as medical advice nor to diagnose, treat, cure or prevent any disease. The information is likewise not to replace the advice of a qualified health care provider. The information provided herein is intended as a sharing of general knowledge only and is not intended to be, nor is it, medical advice or a substitute for medical advice. That being said, please consult your healthcare provider before using supplements or providing supplements to children under the age of 18. If you have or suspect you have, a specific medical condition or disease, please consult your healthcare provider.
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