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Selenium Xtra 200 mcg

product on market Tablet or Pill Sundown Naturals Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Selenium and vitamin C are well-studied antioxidants that support immune function and cellular protection, with strong evidence supporting their roles in reducing oxidative stress. Bioflavonoids are often included to enhance vitamin C absorption, though evidence for their individual efficacy is more limited. This combination is generally recognized as safe for most adults.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Selenium Xtra 200 mcg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Other Combinations
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
60 mg (100% DV)
200 mcg (286% DV)
3.6× RDA — above typical dose (UL: 0.4 mg) 173 studies (A:0, B:67)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Whey Vegetable Magnesium Stearate
Claims

Label Claims — Verification

Unverified All Other
Unverified Qualified Health
Unverified Structure/Function
Info

Product Information

Directions for Use

DIRECTIONS: FOR ADULTS, TAKE ONE (1) TABLET PER DAY, PREFERABLY WITH A MEAL. As a reminder, discuss the supplements and medications you take with your health care providers.

Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN.

WARNING: Not intended for use by pregnant or nursing women.

Avoid this product if you are allergic to yeast.

Contains milk and wheat ingredients.

Discontinue use and consult your doctor if any adverse reactions occur.

If you are taking any medications, consult your doctor before use.

TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.

Formulation Notes

HIGH SELENIUM YEAST

VEGETARIAN FORMULA

No Artificial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Soy, No Fish.

Sodium Free.

Additional Information

STORE IN A DRY PLACE AND AVOID EXCESSIVE HEAT.

Prod. No. 44629 03D B44629 EAZ

Clinically Studied Dosage

Smart Facts Selenium is an essential mineral important for life.* Some scientific evidence suggests that consumption of selenium may reduce the risk of certain forms of cancer. However, the FDA has determined that this evidence is limited and not conclusive. Vitamin C and Bioflavonoids round out this premium formula.

GUARANTEED QUALITY LABORATORY TESTED

PLEASE RECYCLE

Metadata

Product Details

UPC / SKU0 30768 00884 0
DSLD Entry Date2012-02-23
Product TypeOther Combinations
FormTablet or Pill
DSLD ID5848
Data Updated2026-04-11
Research

Research Evidence

273
Research Sources
55
Avg Quality
131
Meta Analysis
61
Systematic Review
55
Rct
19
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Other
1
Observational
1
Openfda Safety
A Selenium for preventing cancer
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Selenium supplementation for the primary prevention of cardiovascular disease
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Selenium supplementation for critically ill adults
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin E and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention Trial (SELECT)
Rct JAMA 2011 PubMed DOI
B Selenium and prostate cancer: systematic review and meta-analysis
Meta Analysis The American journal of clinical nutrition 2012 PubMed DOI
B Selenium supplementation for Hashimoto's thyroiditis
Systematic Review The Cochrane database of systematic reviews 2013 PubMed DOI
B Pharmacological interventions for preventing dry mouth and salivary gland dysfunction following radiotherapy
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
B Selenium, antioxidants, cardiovascular disease, and all-cause mortality: a systematic review and meta-analysis of randomized controlled trials
Meta Analysis The American journal of clinical nutrition 2020 PubMed DOI
B The effect of selenium supplementation on coronary heart disease: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) 2017 PubMed DOI
B Meta-analysis of selenium effects on the meat quality of broilers
Meta Analysis Poultry science 2024 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.