Everything DoseRank tracks on the selenium shelf — Selenomethionine. The category itself is never ranked: 100 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing selenium supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Selenium statusBiochemical sufficiency of selenium.100 rankedStrong
Autoimmune disease activityClinical or biomarker activity of autoimmune disease.20 rankedModerate-strong
Thyroid functionOverall function of the thyroid axis.99 rankedStrong
Sperm motilityAbility of sperm to move effectively.82 rankedModerate-strong
Antioxidant capacityMeasured ability to counter oxidative stress.100 rankedStrong
Hepatic steatosisExcess fat accumulation in the liver.13 rankedModerate-strong
Alanine aminotransferase (ALT)Liver enzyme used to assess hepatocellular injury.11 rankedStrong
Vitamin E statusBiochemical sufficiency of tocopherols/tocotrienols.13 rankedStrong
Zinc statusBiochemical sufficiency of zinc.9 rankedStrong
Respiratory symptom burdenOverall severity of breathing-related symptoms.2 rankedStrong
Acne severityExtent or intensity of acne lesions.9 rankedModerate-strong
Oxidative stress biomarkersLaboratory indicators of oxidative damage or redox imbalance.11 rankedModerate-strong
Vitamin A statusBiochemical sufficiency of retinoids or carotenoid-derived vitamin A.5 rankedStrong
Fracture riskLikelihood of bone fracture.16 rankedStrong
Nutrient deficiency correctionResolution of a documented vitamin, mineral, or nutrient deficiency.1 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best selenium supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 100 products against that goal's trials.