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Selenium 200 mcg

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

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Selenium is an essential trace mineral that supports thyroid function and acts as an antioxidant to protect cells from oxidative stress. There is strong evidence for its role in maintaining metabolic health and immune system stability. This specific formulation provides a standard dose typically used to prevent deficiency.

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

Label

Product Label

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

Label Data

1 Tablet(s)
Serving Size
Mineral
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

200 mcg (286% DV)
3.6× RDA — above typical dose (UL: 0.4 mg) 173 studies (A:0, B:67)

Other Ingredients

Brewer's Yeast Cellulose Croscarmellose Stearic Acid Silica Vegetable Magnesium Stearate
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

DIRECTIONS: FOR ADULTS, TAKE ONE (1) TABLET DAILY, PREFERABLY WITH A MEAL.

Warnings & Precautions

WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Avoid this product if you are allergic to yeast.

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

KEEP OUT OF REACH OF CHILDREN.

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

Contains wheat ingredients.

Formulation Notes

No milk or milk derivatives, lactose, sugar, preservatives, soy, artificial color, artificial flavor, sodium.

Vegetarian Formula

Contains wheat ingredients.

Additional Information

IMPORTANT FACTS YOU SHOULD KNOW Selenium is an essential trace mineral that is important for wellness.* As an antioxidant, Selenium helps fight against cell-damaging free radicals in the body.* Selenium also supports the immune system.*

STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT.

Quality Guaranteed Lab Tested Laboratory tested to meet strict quality control standards for potency, purity and disintegration. 100% Quality Guaranteed.

Prod. No. 44639 10F B51846

Actual size

100% Quality Assurance Laboratory Tested

Supports Prostate & Immune System Health*

Metadata

Product Details

UPC / SKU0 30768 00106 3
DSLD Entry Date2016-09-22
Product TypeMineral
FormTablet or Pill
BrandSundown Naturalist
DSLD ID64895
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
View all evidence for Selenium →
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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.