Selenium 100
GNC Selenium 100 is a single-ingredient mineral supplement. Each tablet provides 100mcg of Selenium, a dosage that is considered to be clinically studied for its various potential benefits. The product holds an N+ Score of 62, resulting in a 'D' grade, which places it in the average quality tier. Its simple formulation with full transparency ensures clarity regarding its active component. This supplement may be suitable for individuals specifically looking to supplement Selenium at a research-backed dose.
About This Product
Selenium 100 by GNC is a vitamins & minerals supplement containing 1 active ingredients. It has earned an N+ Score of 62/100 (Grade D).
This product features a fully transparent label with individual ingredient amounts disclosed, and key ingredients are present at clinically effective doses based on peer-reviewed research.
Notable clinical-dose ingredients include Selenium.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Key ingredients at clinically effective doses
- +Fully transparent label with individual ingredient amounts disclosed
- +1 ingredient(s) at clinical dose levels
Weaknesses
- −Missing several expected ingredients for its category
- −Limited ingredient diversity compared to category norms
Ingredient Analysis (1 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Selenium | 100.000 mcg | Optimal |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





