BioStacks
Best for
Ingredients (1)
Selenium
100%Dose
200 mcg
Target
100–200 mcg
Form
Standard
Other Ingredients (5)
Nutritional YeastBase
Can trigger reactions in people with yeast sensitivity or Candida overgrowth. High in tyramine — may interact with MAOIs and cause hypertensive crisis. High in purines — may worsen gout. Can cause bloating and GI discomfort.
Rice FlourFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Oat FiberFiber
Insoluble dietary fiber from the outer hull or bran of oat grains; primarily cellulose and hemicellulose, low in beta-glucan compared to oat bran soluble fraction
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 mineral supplement, adults take one (1) capsule daily with any meal or as directed by a healthcare provider. Do not exceed recommended dosage.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$5.49
Cheaper than 94% of 62 selenium 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.