BioStacks
GNC

Selenium 100 mcg

1 Tablet · 100 servings · $0.10/serving

iHerbAmazon

Best for

Hormones

Ingredients (2)

Selenium

100%

Dose

100 mcg

Target

100–200 mcg

Form

Standard

Calcium

23 mg

Trace amount — not scored

Other Ingredients (5)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Dicalcium PhosphateBinder

Calcium and phosphorus compound used as binder

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Take it anytime

Take with food. The gap between an effective dose and too much is narrow — don't stack several selenium sources.

With food

On the label

As a dietary supplement, take one or two tablets daily.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$9.99

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Cheaper than 88% of 638 calcium supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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