Selenium

Selenium 200mcg

Selenium is an essential trace mineral and one of the most important antioxidant cofactors in human physiology. It is incorporated into a unique class of proteins called selenoproteins — including glutathione peroxidase, thioredoxin reductase, and iodothyronine deiodinase — which play critical roles in antioxidant defence, thyroid hormone metabolism, immune function, and reproductive wellness.

Selenium is found naturally in soil, and therefore in plant and animal foods — but soil selenium levels vary dramatically by geography. Australian soils are among the most selenium-depleted in the world, making dietary selenium insufficiency a genuine concern for many Australians. Brazil nuts are the richest dietary source of selenium, but food-based intake can be highly variable. This product provides 200mcg of Selenium per capsule — at the upper end of the recommended daily intake range. Not recommended for long-term continuous use at this dose without practitioner guidance.

Key Nutritional Roles of Selenium

• Antioxidant defence — selenium is the essential cofactor for glutathione peroxidase (GPx), one of the body’s primary antioxidant enzyme systems; GPx neutralises hydrogen peroxide and lipid peroxides, protecting cells from oxidative damage
• Thyroid wellness — selenium is required for the activity of iodothyronine deiodinase enzymes, which convert the inactive thyroid hormone T4 into the active form T3; the thyroid gland has the highest selenium concentration of any organ in the body and selenium is one of the most important minerals for thyroid wellness
• Immune function — selenium is required for normal immune cell function and plays a key role in both innate and adaptive immune wellness; it supports the activity of natural killer cells and T-lymphocytes
• Reproductive wellness — selenium is required for normal reproductive function in both males and females; it plays a key role in sperm motility, sperm DNA integrity, and ovarian function
• Cognitive function — selenium is found in high concentrations in the brain and plays a role in cognitive function and neurological wellness; selenoprotein P is the primary selenium transport protein to the brain
• Cardiovascular wellness — selenium’s role in glutathione peroxidase activity and antioxidant defence has generated significant research interest in the context of cardiovascular wellness
• DNA synthesis & repair — selenium plays a role in DNA synthesis and repair through its antioxidant and thioredoxin reductase activity
• Detoxification — selenium plays a role in the detoxification of heavy metals including mercury, cadmium, and arsenic through selenoprotein binding

Selenium & Australian Soils

Australia is one of the most selenium-depleted countries in the world in terms of soil selenium content. This means that Australian-grown plant foods are frequently low in selenium, and many Australians may not achieve optimal selenium nutritional status through diet alone. Selenium insufficiency is more common in Australia than in many other countries and is frequently underidentified. Testing is available through your healthcare practitioner.

Important — Selenium Dosage & Safety

Selenium has a relatively narrow therapeutic window — the difference between an adequate intake and an excessive intake is smaller than for most minerals. The recommended daily intake for adults is 55–70mcg/day, while the tolerable upper intake level (TUL) is 400mcg/day. This product provides 200mcg per capsule, which is above the recommended daily intake and is intended for short-term nutritional repletion or use under practitioner guidance. Do not exceed 1 capsule per day. Not recommended for long-term continuous use at this dose without practitioner guidance.

How to Use

Take 1 capsule daily as a dietary supplement, or as directed by your healthcare practitioner. Best taken with food. Do not exceed the recommended dose. Not recommended for long-term continuous use at 200mcg without practitioner guidance.

Precautions

Important — do not exceed 1 capsule per day. Selenium toxicity (selenosis) can occur with excessive intake — symptoms may include hair loss, nail brittleness, garlic breath odour, and gastrointestinal discomfort. The tolerable upper intake level is 400mcg/day for adults. Consult your healthcare practitioner before use if you are pregnant or breastfeeding — selenium requirements change during pregnancy. Consult your healthcare practitioner before use if you have thyroid conditions or are taking thyroid medications. Consult your healthcare practitioner before use if you are taking anticoagulant medications. Keep out of reach of children. Store in a cool, dry place away from direct sunlight.

Ingredients

Selenium 200mcg per capsule. 60 capsules per bottle.

Stack This With

• Vitamin K2 — complementary fat-soluble vitamin for metabolic and cardiovascular wellness
• Magnesium Glycinate — complementary essential mineral for thyroid and nervous system wellness
• Zinc Gluconate — complementary trace mineral for immune and antioxidant wellness
• Gumpii Extract — foundational botanical base

Related Wellness Guides

• Wellness Hub — explore all herbal guides

Content provided for informational purposes only. Not medical advice. Not intended to diagnose, treat, or cure any condition. Consult your healthcare practitioner.