Overview
Yeast-bound selenomethionine — form used in major chemoprevention trials.
- Whole foods (leafy greens, legumes, nuts, seeds, seafood, animal proteins)
- Fortified foods such as cereals, breads, plant milks, and table salt
- Mineral supplements as chelates, citrates, glycinates, or inorganic salts
- Chelated form (glycinate, bisglycinate, citrate, malate)
- Inorganic salt (oxide, sulfate, chloride)
- Liquid ionic solution
- Topical or transdermal preparation
Forms & variants of Selenium
Different chemical forms of Selenium behave differently. Browse each form's mechanism, bioavailability, and best-use context.
Mechanism of action
Selenomethionine incorporated into proteins and slowly released as needed.
- · Selenomethionine incorporated into proteins
- · slowly released as needed
Effects on the body
Organ system effects
Selenium-Enriched Yeast modulates innate and adaptive immune responses, including cytokine signaling and barrier function.
Selenium-Enriched Yeast acts on hallmarks of aging including oxidative stress, mitochondrial dysfunction, and senescence signaling.
Evidence-based benefits
Reduces anti-TPO antibodies in Hashimoto's
Strong evidencePotential side effects
- · Garlic breath
- · Selenosis >400 mcg long-term
Drug interactions
Safety & non-supplemental interactions
Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.
- ·Autoimmune disease (theoretical immune activation)
- ·Immunosuppressants
Supplement interactions
- Vitamin D3 + K2Foundational immune modulation.
- ZincRequired cofactor for innate and adaptive immune function.
- NAD+ precursor (NMN or NR)Complementary mitochondrial and sirtuin support.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Selenium-Enriched Yeast — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Selenium-Enriched Yeast third party tested NSF
CapsulesPre-measured Selenium-Enriched Yeast capsules — easiest for travel and consistent daily dosing without scoops or scales.Selenium-Enriched Yeast capsules
PowderBulk unflavored Selenium-Enriched Yeast powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Selenium-Enriched Yeast powder unflavored
Best sellersMost-purchased Selenium-Enriched Yeast products on Amazon — a quick way to see what's reviewed widely before you commit.Selenium-Enriched Yeast best sellerScientific evidence8Show studiesHide studies
Selenium in Hashimoto's
Gärtner R, et al.
3-month DB-RCT in 70 patients.
200 mcg/day reduced TPO antibodies by 40% vs placebo.
PubMed: Selenium-Enriched Yeast — Reduces anti-TPO antibodies in Hashimoto's
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Google Scholar: Selenium-Enriched Yeast — clinical evidence
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