Thorne

Selenium, 60 Capsules

Size: 60 capsules

May be a fit for

  • Adults seeking selenium support for healthy thyroid hormone metabolism
  • Individuals with low dietary selenium from selenium-depleted soils
  • Practitioners protocols requiring antioxidant selenium for cellular protection
$14.99

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CapsulesFormat
60 CapsulesPack size
The essentials

A closer look.

Thorne Selenium delivers selenomethionine, an organic, yeast-free form of selenium that supports thyroid hormone metabolism, antioxidant enzyme activity, and immune function. Formulated by Thorne, a brand with a long-standing reputation in practitioner-grade supplementation, it's a straightforward option for adults looking to address selenium intake through a well-absorbed dietary form.

Why It's Worth Considering: Selenomethionine is among the more bioavailable forms of selenium, and Thorne's manufacturing standards emphasize purity and absence of common allergens and additives.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking selenium support for healthy thyroid hormone metabolism
  • Individuals with low dietary selenium from selenium-depleted soils
  • Practitioners protocols requiring antioxidant selenium for cellular protection
  • Those supporting glutathione peroxidase activity with foundational 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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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.

Thorne - Selenium, 60 Capsules