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Selenium 200 mcg

Carlson
4.9
★ ★ ★ ★ ★
(1741 ratings)
Selenium 200 mcg
Product Image
Score86
A focused 200 mcg selenium capsule using L-selenomethionine, with clear dosing but incomplete non-active ingredient details.
How scoring works
Quantity:180 Capsule(s) • (180 servings)
Goals:
Immunity
General Health

Score 86

A focused 200 mcg selenium capsule using L-selenomethionine, with clear dosing but incomplete non-active ingredient details.
How scoring works

Also available as

1 option
60 servings Selenium 200 mcg • 60 Capsule(s) • 60 servings $8.08 ($0.13 per serving)
$20.83($0.11 per serving)
Pure Formulas
$ 20.83
Vitacost
$ 20.83
Vitacost
$ 20.83
Amazon
$ 20.83
iHerb
$ 20.83
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Analysis

Selenium 200 mcg provides 200 mcg selenium as L-selenomethionine. The narrow formula makes its purpose and daily contribution easy to understand.

The organic form is clearly disclosed and commonly chosen for routine supplementation. The supplied details do not include non-active ingredients, so capsule or tablet suitability cannot be fully checked.

The large capsule supply supports consistent use at reasonable value. The dose should still be considered alongside selenium from food and other supplements.

Who is it for
  • Adults intentionally adding selenium
  • People who prefer a capsule format
Best for
  • Targeted selenium intake
  • Simple supplement routines

Pros

  • Clearly states 200 mcg selenium
  • Uses L-selenomethionine
  • The large capsule supply supports consistent use at reasonable value.

Cons

  • Non-active ingredients are not supplied
  • Narrow single-nutrient formula
  • Requires care when stacking supplements

Warnings

  • Count the 200 mcg selenium serving with multivitamins and other selenium products to avoid unnecessary excess.

Nutrient quality

94 Highest impact

A well-absorbed organic form and meaningful amount provide strong targeted support. The focused formula avoids filler, although total selenium from other products still matters.

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Ingredient transparency

84 Highest impact

The active form and amount are clearly identified without a hidden blend. Explicit use directions and non-active ingredients are absent from the supplied data.

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Customer satisfaction

71 High impact

The available rating is strong and the sample is large. Detailed feedback was not supplied, so repeated complaints and alignment with the intended use remain uncertain.

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Value for money

93 Highest impact

A well-absorbed form and long supply support strong value. The single-active design avoids unnecessary extras that could raise the cost.

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Goals

Immunity
Immunity
Impact
Highest effect
B+ Goal FitA+ Strength of SupportC- CoverageA+ Formula Quality
Selenium · 200 mcg

L-selenomethionine provides focused support for selenium-dependent antioxidant enzymes and normal immune responses. Its immune contribution is credible but much narrower than a multi-pathway formula.

The organic form and exact amount are clearly stated, and the serving is substantial without reaching the adult upper limit. Combining it with other high-selenium products could raise total intake enough to cause hair, nail, or digestive changes over time.

Study evidence
Selenium Mixed 37 studies
General Health
General Health
Impact
Highest effect
B+ Goal FitA Strength of SupportD+ CoverageA+ Formula Quality
Selenium · 200 mcg

Selenomethionine supplies a well-absorbed form of an essential trace mineral used in antioxidant and thyroid-related enzymes. The precise label and focused formula support dependable intake when selenium is needed.

Coverage is narrow because selenium alone cannot fill broader nutritional gaps. The stated amount is substantial, so combining it with other selenium supplements could raise long-term exposure and lead to hair, nail, or digestive symptoms.

Study evidence
Selenium Supportive 70 studies

Ingredients

IngredientAmount per serving
Selenium (L-Selenomethionine)
 200 mcg
Gluten Free Adults 18–50
Report overview
Selenium (L-Selenomethionine) · 200 mcg OverallScore96
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

L-selenomethionine provides a well-absorbed organic form at a well-targeted dose. The source is clearly identified, and the serving leaves a sensible safety margin for dietary selenium. The cost is favorable for the form and amount delivered.

View ingredientView products
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87 Performance

Selenium 200 mcg

Nature's Way
<p>Its label clearly provides 200 mcg of Selenium as L-Selenomethionine, making it a more clearly defined selenium option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.</p>
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Selenium 200 mcg

California Gold Nutrition
<p>Its label clearly provides 200 mcg of Selenium as L-Selenomethionine, making it a more clearly defined selenium option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.</p>
87 Performance

Selenium 200 mcg

NOW
<p>Its label clearly provides 200 mcg of Selenium as L-Selenomethionine, making it a more clearly defined selenium option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.</p>
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Se-Methyl L-Selenocysteine 200 mcg

Life Extension
<p>Its label clearly provides 200 mcg of Selenium as Se-Methyl L-Selenocysteine, preserving relevant selenium coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.</p>
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Selenium 200 mcg

Solgar
<p>Its label clearly provides 200 mcg of Selenium as L-Selenomethionine, preserving relevant selenium coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.</p>
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SeMSC Selenium 200 mcg

Swanson
<p>Its label clearly provides 200 mcg of Selenium as L-Se-Methylselenocysteine, preserving relevant selenium coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.</p>
87 Value

Selenium 200 mcg

Source Naturals
<p>Its label clearly provides 37 mg of Calcium as Dibasic Calcium Phosphate, keeping the formula relevant to selenium. Compared with the original, the lower serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.</p>
87 Value

Selenium 200 mcg

NOW
<p>Its label clearly provides 200 mcg of Selenium as L-Selenomethionine, keeping the formula relevant to selenium. Compared with the original, the lower serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.</p>
86 Value

Selenium 200 mcg

Solgar
<p>Its label clearly provides 200 mcg of Selenium as L-Selenomethionine, keeping the formula relevant to selenium. Compared with the original, the lower serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Associations of selenium status with all-cause and cause-specific mortality: a systematic review and meta-analysis of cohort studies.
    Cui Z; Xie R; Lu X; Schomburg L; Brenner H; Schöttker B · Redox biology · 2025
    Meta-analysis95 participants20 studies pooledGeneral Health forSelenium
  2. Dietary Antioxidants, Circulating Antioxidant Concentrations, Total Antioxidant Capacity, and Risk of All-Cause Mortality: A Systematic Review and Dose-Response Meta-Analysis of Prospective Observational Studies.
    Jayedi A; Rashidy-Pour A; Parohan M; Zargar MS; Shab-Bidar S · Advances in nutrition (Bethesda, Md.) · 2019
    Meta-analysis507,251 participants41 studies pooledGeneral Health forSelenium
  3. The efficacy and safety of selenium supplementation versus placebo in the treatment of Graves' orbitopathy: A systematic review and meta-analysis of randomised controlled trials.
    Sharabati I; Qafesha RM; Hindawi MD; Amro S; Ayesh BM · Clinical endocrinology · 2024
    Meta-analysis4 studies pooledGeneral Health forSelenium
  4. Associations of plasma metal concentrations with the risks of all-cause and cardiovascular disease mortality in Chinese adults.
    Shi L; Yuan Y; Xiao Y; Long P; Li W; Yu Y; Liu Y; Liu K; Wang H; Zhou L; Yang H; Li X; He M; Wu T · Environment international · 2021
    Cohort study6,155 participantsGeneral Health forSelenium
  5. Updates on clinical studies of selenium supplementation in radiotherapy.
    Puspitasari IM; Abdulah R; Yamazaki C; Kameo S; Nakano T; Koyama H · Radiation oncology (London, England) · 2015
    Systematic review16 studies pooledGeneral Health forSelenium
  6. Effects of selenium supplementation on selenoprotein gene expression and response to influenza vaccine challenge: a randomised controlled trial.
    Goldson AJ; Fairweather-Tait SJ; Armah CN; Bao Y; Broadley MR; Dainty JR; Furniss C; Hart DJ; Teucher B; Hurst R · PloS one · 2011
    Randomized trial119 participantsImmunity forSelenium
  7. Effect of selenium on immune response against hepatitis B vaccine with accelerated method in insulin-dependent diabetes mellitus patients.
    Janbakhsh A; Mansouri F; Vaziri S; Sayad B; Afsharian M; Rahimi M; Shahebrahimi K; Salari F · Caspian journal of internal medicine · 2013
    Randomized trial62 participantsImmunity forSelenium
  8. Chemoprevention trial of human hepatitis with selenium supplementation in China.
    Yu SY; Li WG; Zhu YJ; Yu WP; Hou C · Biological trace element research · 1990
    Non-randomized trial20,847 participantsImmunity forSelenium
  9. Selenium nanoparticles as adjunctive therapy in sepsis: A pilot randomized clinical trial.
    Gu WJ; Huang W; Zhao FZ; Yuan XK; Jin K; Chen JL; Zhang CY; Huang Y; He L; Zhuang H; Yin HY; Chen T · Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2026
    Randomized trial70 participantsImmunity forSelenium
  10. Selenium supplementation in patients with autoimmune thyroiditis decreases thyroid peroxidase antibodies concentrations.
    Gärtner R; Gasnier BC; Dietrich JW; Krebs B; Angstwurm MW · The Journal of clinical endocrinology and metabolism · 2002
    Randomized trial70 participantsImmunity forSelenium