PlainVitamins

Selenium 100 mcg

by NOW · tablet or pill · 250 tablets

  • On the market (NIH)
  • UPC 7 33739 01482 5
  • DSLD label 314071
  • Serving 1 tablet
  • 250 servings

Selenium 100 mcg by NOW lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 100 mcg of selenium. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2024.

What is in Selenium 100 mcg?

Each row as the label prints it, per serving of 1 tablet. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Selenium 100 mcg: Supplement Facts rows against the market (DSLD label 314071, January 2026 release)
IngredientAmount% DVAmong products listing it
Seleniumelemental100 mcg182%Selenium in Selenium 100 mcg against 7,658 products100 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg100 mcg

Higher than 65% of 7,658 products listing selenium (median 55 mcg). Per day at the most servings: 200 mcg.

L-Selenomethionine20 mgSelenomethionine in Selenium 100 mcg against 42 products20,000 mcg per serving; the middle half of products list 50 mcg to 495 mcg, the median 112.5 mcg.20,000 mcg

Higher than 90% of 42 products listing selenomethionine (median 112.5 mcg). Per day at the most servings: 40,000 mcg.

Source: NIH ODS Dietary Supplement Label Database, label 314071 (entered July 25, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 20,000 mcg of L-selenomethionine (filed by NIH under selenomethionine) is higher than 90% of the 42 selenomethionine products that print an amount; 3 list more.

The NIH database records 1 to 2 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

4 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Usage: Take 1 tablet 1 to 2 times daily with food.
Warnings
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Persons living in areas of high soil selenium, such as the Dakotas, should consult a physician prior to use.
Keep out of reach of children.
Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Yeast free
Non-GMO
Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 314071.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Stearic Acid, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Triangle K (Kosher); GMP Quality Assured.

How many labels does Selenium 100 mcg have?

14 labels are on file under this name since August 24, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 314071 (current) Entered July 25, 2024 · on the market · 250 tablets · UPC 7 33739 01482 5
  2. Label 314070 Entered July 25, 2024 · on the market · 100 tablets · UPC 7 33739 01480 1
  3. Label 210429 Entered December 22, 2019 · off the market February 12, 2024 · 250 tablets · UPC 7 33739 01482 5
  4. Label 210427 Entered December 22, 2019 · off the market February 12, 2024 · 100 tablets · UPC 7 33739 01480 1
  5. Label 70716 Entered March 24, 2017 · off the market December 19, 2018 · 250 tablets · UPC 7 33739 01482 5
  6. Label 70715 Entered February 24, 2017 · off the market December 19, 2018 · 100 tablets · UPC 7 33739 01480 1
  7. Label 52819 Entered November 24, 2015 · off the market November 30, 2016 · 250 tablets · UPC 7 33739 01482 5
  8. Label 52815 Entered October 22, 2015 · off the market November 30, 2016 · 100 tablets · UPC 7 33739 01480 1
  9. Label 38859 Entered October 27, 2014 · off the market September 30, 2015 · 250 tablets · UPC 7 33739 01482 5
  10. Label 38857 Entered October 27, 2014 · off the market September 30, 2015 · 100 tablets · UPC 7 33739 01480 1
  11. Label 14608 Entered October 25, 2012 · off the market October 8, 2014 · 250 tablets · UPC 7 33739 01482 5
  12. Label 14606 Entered October 25, 2012 · off the market October 8, 2014 · 100 tablets · UPC 7 33739 01480 1
  13. Label 12685 Entered August 24, 2012 · off the market August 8, 2011 · 250 tablets · UPC 7 33739 01482 5
  14. Label 12675 Entered August 24, 2012 · off the market August 8, 2011 · 100 tablets · UPC 7 33739 01480 1

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names NOW FOODS (manufacturer), Bloomingdale, IL. All NOW products.

Where next?