Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

Retailer links may be affiliate links and DoseRank may earn a commission. Rankings and placement are determined by the scoring model only — never by payment from a brand.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

Improve selenium status

What this outcome means

Selenium status reflects whether your body holds enough of this trace mineral to meet its everyday biochemical needs. On DoseRank it maps to a defined health outcome built from human studies on blood selenium concentration, selenoprotein activity, and markers of sufficiency or shortfall – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Low-selenium dietsEating patterns light on the foods that supply this mineral.

Selenium-poor soil regionsLiving where local crops grow in mineral-depleted ground.

Confirmed shortfallBloodwork has flagged selenium below the sufficient range.

Stack buildersAlready taking supplements such as Selenomethionine and want the dose right.

Evidence level

92Strong

Selenomethionine – has strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 74 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best ingredients

Selenomethionine is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 74

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Selenomethionine 100 mcg vs 50-200 mcg.

Processed

1.5k

Available

1.5k

Ingredients

Brands

199

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

Not sure which is right for you?

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.

Take 60-sec quiz

Get a personal report

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

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. 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.

Improve selenium status

What this outcome means

Who it's for

Low-selenium dietsEating patterns light on the foods that supply this mineral.

Selenium-poor soil regionsLiving where local crops grow in mineral-depleted ground.

Confirmed shortfallBloodwork has flagged selenium below the sufficient range.

Stack buildersAlready taking supplements such as Selenomethionine and want the dose right.

Evidence level

92Strong

Best ingredients

Selenomethionine is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 74

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Selenomethionine 100 mcg vs 50-200 mcg.

Processed

1.5k

Available

1.5k

Ingredients

Brands

199

Coverage

100%

Relevant ingredients

Which ingredient types matter for selenium statusOpen to see which ingredient types matter for selenium status

1.4k products across 1 ingredient types — open to filter the ranking.

Use types to filter ranked products

Minerals & Trace Elements

1.4k products

Inorganic nutrients from calcium to zinc. The chemical form drives absorption – chelates and citrates usually beat cheap oxides.

Typical: , , , ...

Top decision cards

Best products for selenium status

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for selenium status

NOW Foods, Selenium, 100 mcg, 100 Tablets

NOW Foods$0.05 / serving4.9 · 61,604Available now

Also helps with

Antioxidant capacity

Thyroid function

Sperm motility

Why this ranks here

Evidence fitSelenomethionine is the strongest evidence signal for this outcome.
Dose fitSelenomethionine at 100 mcg lands inside the studied 50-200 mcg window.
Price / serving$0.05 per serving — low price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustStrong trust signals — consistently high marks from verified buyer ratings.

The numbers

100 mcgIn rangeinside the studied 50-200 mcg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

California Gold Nutrition, Selenium, Yeast-Free, 200 mcg, 180 Veggie Capsules

California Gold NutritionClinical89Dose fit90Popularity98$0.05/ serving

NOW Foods, Selenium, 200 mcg, 180 Veg Capsules

NOW FoodsClinical89Dose fit90Popularity98$0.06/ serving

Solgar, Selenium, Yeast-Free, 100 mcg, 100 Tablets

SolgarClinical89Dose fit74Popularity91$0.06/ serving

21st Century, Selenium, 200 mcg, 60 Capsules

21st CenturyClinical89Dose fit90Popularity89$0.09/ serving

Life Extension, Se-Methyl L- Selenocysteine, 200 mcg, 90 Vegetarian Capsules

Life ExtensionClinical89Dose fit90Popularity91$0.08/ serving

Swanson Vitamins, Selenium, 100 mcg, 200 Capsules

Swanson VitaminsClinical89Dose fit74Popularity80$0.05/ serving

California Gold Nutrition, Defender 4, with Vitamin C, Vitamin D, Zinc & Selenium, 180 Veggie Capsules

California Gold NutritionClinical89Dose fit67Popularity96$0.07/ serving

Nature's Way, Selenium, 200 mcg, 100 Capsules

Nature's WayClinical89Dose fit90Popularity80$0.10/ serving

Solgar, Selenium, Yeast-Free, 200 mcg, 100 Tablets

SolgarClinical89Dose fit90Popularity84$0.10/ serving