Hermetica Superfood Encyclopedia
The Short Answer
An essential trace mineral that powers your body's antioxidant defenses, supports healthy thyroid function, and strengthens the immune system.
CategoryVitamin & Mineral
GroupMineral
Evidence LevelModerate
Synergy Pairings4
Health Benefits
Neutralizes free radicals by activating glutathione peroxidase, reducing oxidative stress and cellular aging.
Converts inactive thyroxine (T4) into active triiodothyronine (T3), optimizing thyroid hormone metabolism.
Enhances the proliferation and efficacy of T-cells and natural killer cells, bolstering immune defense.
Minimizes vascular inflammation and oxidative damage, contributing to cardiovascular health.
Protects neurons from oxidative degradation, aiding in mental clarity and age-related cognitive function.
Prevents deficiency-related conditions such as hypothyroidism, weakened immunity, and cardiomyopathy.
Origin & History
Selenium is a vital trace mineral integral to robust antioxidant defense, efficient thyroid hormone metabolism, and strong immune resilience. As a cornerstone component of selenoproteins, particularly glutathione peroxidase, it safeguards cells from oxidative damage and supports overall metabolic and endocrine harmony.
“Modern biochemical compound without traditional medicinal history. Its essential role as a trace mineral was discovered in the early 20th century, with subsequent research elucidating its profound impact on human health.”Traditional Medicine
Scientific Research
Extensive research, including human nutrition studies, highlights selenium's critical role in thyroid function and metabolism. Evidence supports its antioxidant properties and immune-modulating effects, with ongoing studies exploring its impact on various chronic diseases.
Preparation & Dosage
Synergy
Works synergistically with iodine for comprehensive thyroid health and with zinc and vitamin E for enhanced antioxidant defense.
Applications
Foundational in formulations targeting longevity, metabolic vitality, thyroid support, immune enhancement, and anti-inflammatory benefits.
Forms
Typically found in supplements as selenomethionine or sodium selenite.
Nutritional Profile
- Minerals: Selenium (trace mineral)
- Food Sources: Brazil nuts (richest natural source), sardines, eggs, sunflower seeds, poultry, shiitake mushrooms, whole grains.
- Bioavailability: Enhanced by co-consumption with Vitamin E and sulfur-rich amino acids.
Synergy Stack
Hermetica Formulation Heuristic
Mineral cofactor
Immune & Inflammation | Hormonal Balance
Frequently Asked Questions
What is selenium and why is it important?
Selenium is an essential trace mineral that the body cannot produce on its own. It is a critical component of selenoproteins, including glutathione peroxidase, which protects cells from oxidative damage. It also plays a vital role in thyroid hormone conversion (T4 to T3) and immune cell function.
How much selenium should I take and can I take too much?
The recommended daily allowance is 55 mcg for adults, with therapeutic doses ranging from 100-200 mcg/day. The tolerable upper limit is 400 mcg/day — exceeding this chronically can cause selenosis, characterized by hair loss, nail changes, and GI symptoms. A single Brazil nut daily provides approximately 70-90 mcg, often sufficient to meet needs.
What is the best form of selenium to supplement?
Selenomethionine is the most bioavailable form, with approximately 90-95% absorption, and is the preferred choice for general supplementation. Selenium-enriched yeast is another well-absorbed option that provides multiple organic selenium species. Sodium selenite is less bioavailable and more prone to interactions with other nutrients like vitamin C.
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Browse IngredientsThese statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.
