{"id":169771,"date":"2025-03-14T11:14:12","date_gmt":"2025-03-14T10:14:12","guid":{"rendered":"https:\/\/purovitalis.com\/?p=169771"},"modified":"2025-10-28T14:47:36","modified_gmt":"2025-10-28T13:47:36","slug":"selenium-gezondheid-voordelen-longevity","status":"publish","type":"post","link":"https:\/\/staging.purovitalis.com\/nl\/selenium-health-benefits-longevity\/","title":{"rendered":"Selenium \u2013 voordelen, gebruik, bijwerkingen en dosering"},"content":{"rendered":"\n

Selenium might not be a mineral you think about often, but it\u2019s incredibly important for your health and longevity. But what exactly is selenium, and what is selenium good for? Selenium is found naturally in various foods or as a selenium supplement<\/a> – this mineral helps your body fight damage caused by harmful environmental substances and stress. Knowing what selenium does for your body and keeping the right levels can really boost your overall health and longevity.<\/p>\n\n\n\n

What are selenium benefits?<\/h2>\n\n\n\n

There are plenty of selenium benefits, especially thanks to its strong antioxidant properties that protect your cells from damage and inflammation. Maintaining healthy selenium levels supports overall well-being and contributes to long-term health. A recent systematic review from 2025 highlights the importance of optimal selenium levels for maintaining good health. <\/p>\n\n\n\n

What is selenium good for?<\/h2>\n\n\n\n

Selenium plays several important roles in your body. People commonly use selenium supplements to address deficiencies, support thyroid health, and enhance their immune system. Additionally, selenium protects your cells from harmful damage, helps produce DNA, and can even help your body fight off infections. Knowing these benefits makes it easier to understand why getting the right amount of selenium is important for your overall health.<\/p>\n\n\n\n

How selenium can help thyroid health<\/h2>\n\n\n\n

Selenium supports thyroid health<\/a> by helping your body convert thyroid hormones from inactive forms (T4) to active forms (T3), which is vital because active thyroid hormones regulate metabolism, energy levels, and overall body functions. A study in Clinical Endocrinology found that selenium supplementation significantly improved symptoms of autoimmune thyroiditis, a condition where the immune system mistakenly attacks the thyroid, leading to inflammation and impaired function[1<\/a>]. A regular intake of selenium might lower your risk of thyroid-related problems.
<\/p>\n\n\n\n

You might also find this blog intersting: Quercetin and thyroid side effects \u2013 the checklist<\/a><\/p>\n\n\n\n

Cognitive support<\/h2>\n\n\n\n

Healthy selenium levels play an important role in brain health by protecting neurons from oxidative stress, a key factor in cognitive decline. As we age, maintaining optimal selenium intake may help support memory, focus, and overall brain function. Research published in Neuroepidemiology<\/em> suggests that having enough selenium in your diet could contribute to better cognitive health and may even reduce the risk of age-related decline [2<\/a>].<\/p>\n\n\n\n

Selenium helps boost immune system<\/h2>\n\n\n\n

Selenium boosts your immune system by improving how well your immune cells function. Its antioxidant properties protect these cells from damage, helping your body better fight infections. A review in Nutrients highlights that selenium deficiency might weaken your immune system, making you more vulnerable to illnesses [3<\/a>].<\/p>\n\n\n\n

Selenium dosage<\/h2>\n\n\n\n

Knowing how much selenium you should take can help you achieve optimal health benefits without risking side effects. Here\u2019s a simple breakdown of daily recommended selenium dosages:<\/p>\n\n\n\n

Age Group<\/th>Recommended Daily Dosage (from food and supplements)<\/th><\/tr><\/thead>
Birth to 6 months<\/td>15 mcg*<\/td><\/tr>
7\u201312 months<\/td>20 mcg*<\/td><\/tr>
1\u20133 years<\/td>20 mcg<\/td><\/tr>
4\u20138 years<\/td>30 mcg<\/td><\/tr>
9\u201313 years<\/td>40 mcg<\/td><\/tr>
14\u201318 years<\/td>55 mcg (general), 60 mcg (pregnant), 70 mcg (breastfeeding)<\/td><\/tr>
19\u201350 years<\/td>55 mcg (general), 60 mcg (pregnant), 70 mcg (breastfeeding)<\/td><\/tr>
51+ years<\/td>55 mcg<\/td><\/tr><\/tbody><\/table>
*Adequate Intake (AI).
Source: Office of Dietary Supplements, National Institutes of Health. Selenium \u2013 Health Professional Fact Sheet. Updated April 15, 2024. Available at: https:\/\/ods.od.nih.gov\/factsheets\/Selenium-HealthProfessional\/<\/a><\/em><\/figcaption><\/figure>\n\n\n\n

What are the signs of selenium deficiency?<\/h2>\n\n\n\n

A deficiency in selenium can lead to various health problems. Some common signs include:<\/p>\n\n\n\n