Selenium 200 mcg

Selenium 200 mcg

21st Century4.8 (11,106 ratings)
Format:Capsule Quantity: 60 Capsule(s) · 60 servings
Goals
$5.49 $0.09 per serving

Product analysis

93 out of 100

Selenium 200 mcg supports normal immune function and the body’s antioxidant defenses when selenium intake is low. Selenium yeast and favorable value add to its appeal for filling that gap.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality90

Selenium yeast is a favorable choice of selenium form. It supports the quality of the ingredient without establishing extra benefit when selenium intake is already adequate.

Ingredient Transparency100

Both the selenium amount and its yeast form are disclosed. You can compare the serving without guessing what source it contains.

Value For Money100

The selenium serving offers good value. Its cost compares favorably with the amount provided.

Customer Satisfaction93

Customer satisfaction is strongly positive across a large number of ratings. The broad feedback supports confidence in customer reception, without proving health benefits.

Product Focus84

The single-nutrient formula has a clear role in filling a selenium gap. Its immune and everyday nutrition benefits overlap through normal antioxidant function.

Format
Capsule
Container
60 Capsule(s)
Per serving
$0.09
Customer rating
4.8 · 11,106 ratings
Report analysis

Goals

Everyday Health
Impact
Highest effect
A+ Ingredient FitC PathwaysB+ EvidenceA+ Formulation Logic
Selenium · 200 mcg
Study evidence
Selenium Supportive 70 studies
Immunity
Impact
Highest effect
A+ Ingredient FitD+ PathwaysA- EvidenceA+ Formulation Logic
Selenium · 200 mcg
Study evidence
Selenium Mixed 37 studies

Ingredients

IngredientAmount per servingScore
Selenium (Selenium Yeast)
200 mcg 92
Gluten Free Adults 18–50
Report overview
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
Each serving provides 200 mcg of selenium, and the cost per 200 mcg is low. That is an amount commonly used in trials for antioxidant and thyroid support. It uses Selenium-enriched Yeast.
How this ingredient is rated

Active Ingredient Quality & Bioavailability81

It uses Selenium-enriched Yeast.
Selenium Chemical Form
It uses Selenium-enriched Yeast.
Form Transparency & Isomer Specificity
The yeast source is named, but no specific branded source is stated.

Dose, Safety & Label Transparency100

The 200 mcg serving is an amount commonly used in trials for antioxidant and thyroid support. The amount is below 400 mcg, leaving room for selenium from food.
Dosage Efficacy Sweet Spot
The 200 mcg serving is an amount commonly used in trials for antioxidant and thyroid support.
Safety Margin & UL Adherence
The amount is below 400 mcg, leaving room for selenium from food.

Value100

The cost per 200 mcg of selenium is low.
Price per 200 mcg Serving
The cost per 200 mcg of selenium is low.
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 pooledEveryday 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 pooledEveryday 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 pooledEveryday 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 participantsEveryday 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 pooledEveryday 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