Metabolic Maintenance

Selenium 200mcg

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.

4.7 across 7 sources

May be a fit for

  • Adults seeking 200mcg selenium to support healthy thyroid hormone metabolism
  • Those looking to maintain antioxidant defenses with selenomethionine or selenite forms
  • Individuals in selenium-poor geographic regions supporting baseline selenium status
$26.99

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The essentials

A closer look.

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.

The Apotheca perspective

50+ signals. A clearer standard.

Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.

93OUT OF 100
Manufacturing8787
Lab verification8383
Transparency6868

Our score is an editorial assessment, not a product certification or a guarantee of results.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking 200mcg selenium to support healthy thyroid hormone metabolism
  • Those looking to maintain antioxidant defenses with selenomethionine or selenite forms
  • Individuals in selenium-poor geographic regions supporting baseline selenium status
  • Those supporting immune cell function with daily 200mcg selenium intake

Considerations

  • Already consuming high-selenium foods daily (Brazil nuts)
  • Doses above 400mcg/day (selenosis risk)
  • Non-melanoma skin cancer history (some concern with high-dose Se)
Compatibility & interactions

Works Well With

Ask Gabriel for personalized stacking recommendations.

Take Separately From

No significant interactions identified. Always consult your healthcare provider.

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From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

4.7/5Aggregate source rating
Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

3486 product and brand ratings and mentions across 7 sources.

Explore the source sentiment summary

Selenium broadly praised for thyroid, energy, and hair benefits; some caution around dosing and brand efficacy variation.

This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.

Good to know

A few useful answers.

Research & further reading

More category questions

How much selenium should I take?

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).

Is selenium good for thyroid?

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.

Can I just eat Brazil nuts instead?

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.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Metabolic Maintenance - Selenium 200mcg Metabolic Maintenance

Apotheca quality score

93/100

The overall score combines several sources of information. The individual dimensions below show where those signals are stronger or more limited; they are not a simple average of the overall score.

Manufacturing8787
Lab verification8383
Review consensus100100
Practitioner signals50.050.0
Community signals6363
Transparency6868
See available brand signals
✓
Third-party lab tested (heavy metals, contaminants)Pass
✓
Good manufacturing practices verifiedStandard
✓
Premium ingredient sourcing with bioavailable formsHigh
✓
Clean FDA regulatory recordNo issues
✓
Positive consumer reviews and community feedbackGood
✓
Authorized distribution channel verifiedDirect

Our score is an editorial assessment, not a product certification or a guarantee of results.

How our scoring works ↗