Ingredient Information
Summary
Selenium is a vital mineral that contributes to the normal function of the immune system and the protection of cells from oxidative stress. It is found in foods like Brazil nuts, fish, and eggs, but can also be taken as a supplement. Selenium is particularly beneficial for individuals who may not get enough from their diet, such as those with specific dietary restrictions or living in areas with selenium-poor soil. It supports overall health by contributing to normal thyroid function and maintaining healthy hair and nails. As always, it’s important to follow recommended dosages and consult with a healthcare professional if you have any concerns.
Key Facts
- Type: Mineral
- Natural source: Brazil nuts, fish, eggs
- Typical supplemental dose: 55 µg (100% NRV)
- Used for: Contributes to normal immune system function
- First discovered: 1817
What Is Selenium?
Selenium, also known as Se or by its chemical name, is a non-metal element with the empirical formula Se. It is commonly found in nature in the form of selenide minerals. Selenium is typically sourced through the mining of these minerals or as a by-product of refining metal ores such as copper. In its pure form, selenium appears as a grey, metallic-looking solid. It is classified as a trace element essential for human health, contributing to the normal function of the immune system and protection of cells from oxidative stress.
How It Works In The Body
Selenium is a trace mineral that contributes to the normal function of the immune system and protects cells from oxidative stress (damage caused by free radicals). It is incorporated into selenoproteins, which are essential for various bodily processes, including thyroid hormone metabolism and DNA synthesis. By supporting these functions, selenium helps maintain overall health and well-being.
Safety & Interactions
- Selenium is generally recognised as safe when consumed within recommended amounts.
- Pregnant and breastfeeding women should not exceed the recommended intake, as high levels can be harmful.
- Individuals with a history of skin cancer should consult a healthcare professional before taking selenium supplements.
- The UK upper intake level for selenium is 350 µg per day for adults.
- Excessive selenium intake can lead to selenosis, with symptoms such as hair loss, nail changes, and neurological abnormalities.
Always consult your health practitioner before taking nutritional supplements, especially if you are taking medication or are under medical supervision. You should not take supplements as a substitute for a varied balanced diet or healthy lifestyle.
FAQs
What is selenium and why is it important?
Selenium is a trace mineral that contributes to the maintenance of normal hair and nails, supports the normal function of the immune system, and protects cells from oxidative stress.
How much selenium should I take daily?
The recommended daily intake for adults is 55 µg. Always consult a healthcare professional before starting any supplement.
Can I get selenium from food?
Yes, selenium is found in foods like Brazil nuts, fish, and eggs. A balanced diet typically provides sufficient selenium for most people.
References
1. https://pubmed.ncbi.nlm.nih.gov/10963212/
Selenium is needed for the proper functioning of the immune system.
2. https://pubmed.ncbi.nlm.nih.gov/36768955/
Low selenium status has been associated with an increased risk of mortality, poor immune function, cognitive decline, and thyroid dysfunction.
3. https://pubmed.ncbi.nlm.nih.gov/22381456/
Prospective studies have generally shown some benefit of higher selenium status on the risk of prostate, lung, colorectal, and bladder cancers.
Our products that contain Selenium
Where next?
Information on this page is for educational purposes only and is not a substitute for personalised medical advice. Always consult a healthcare professional before making dietary changes or starting new supplements.