Selenium broadly praised for thyroid, energy, and hair benefits; some caution around dosing and brand efficacy variation.
Metabolic Maintenance Selenium 200mcg delivers selenium as sodium selenate, a well-absorbed inorganic form, at a clinically relevant dose to support thyroid hormone metabolism, antioxidant enzyme activity (via glutathione peroxidase), and immune function. This product is designed for adults looking to maintain adequate selenium status through a straightforward, single-ingredient formula.
Why It's Worth Considering: Metabolic Maintenance is known for clean, minimalist formulations with transparent labeling and pharmaceutical-grade manufacturing standards — making this a practical choice for those who prefer a pure, no-filler selenium supplement.
For maintenance: 100-200mcg daily (selenomethionine form preferred). For thyroid support: 200mcg. The RDA is 55mcg but most functional medicine practitioners recommend 100-200mcg. Do NOT exceed 400mcg/day — selenium has a narrow therapeutic window and excess causes selenosis (hair loss, nail brittleness, GI issues).
Yes — selenium is critical for thyroid function. It's required for the enzyme that converts inactive T4 to active T3, AND it protects thyroid cells from oxidative damage. In Hashimoto's, 200mcg selenium daily reduces TPO antibodies by 20-40% in clinical trials. It's one of the most evidence-based supplements for thyroid health.
One Brazil nut contains 70-90mcg selenium — so 2 nuts/day provides a therapeutic dose. However, selenium content varies dramatically by soil (some nuts have 10mcg, others have 300mcg). If you rely on Brazil nuts, be cautious about overconsumption — 4-5 large nuts could exceed 400mcg. A supplement provides a consistent, known dose.
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No significant interactions identified. Always consult your healthcare provider.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
