Supplements

Selenium in supplements · page 106

5,128 supplements on the U.S. market list Selenium with an amount per serving. The official Tolerable Upper Intake Level for adults is 400 mcg a day.

Tolerable Upper Intake Level (UL)

The highest daily amount that is unlikely to cause harm for almost all healthy people, from food, drinks and supplements combined.

Age	Men	Women	Pregnancy	Breastfeeding
0-6 months	45 mcg	45 mcg	—	—
7-12 months	60 mcg	60 mcg	—	—
1–3 years	90 mcg	90 mcg	—	—
4–8 years	150 mcg	150 mcg	—	—
9–13 years	280 mcg	280 mcg	—	—
14–18 years	400 mcg	400 mcg	400 mcg	400 mcg
19–50 years	400 mcg	400 mcg	400 mcg	400 mcg
51+ years	400 mcg	400 mcg	—	—

Source: NIH ODS Selenium Fact Sheet for Health Professionals, Table 3 (updated 2025-09-04).

Supplements with Selenium

5,128 shown · page 106 of 107

Selenium 200 mcgZHOU · Capsule200 mcg per serving

Natural Selenium 50 mcgBasic Vitamins · Tablet or Pill50 mcg per serving

SeleniumZemvelo · Liquid400 mcg per serving

Selenium 50 mcgAN Amazing Nutrition Amazing Formulas · Tablet or Pill50 mcg per serving

Selenium Yeast 200 mcgHerbal Secrets · Tablet or Pill200 mcg per serving

Ultimate Selenium ConcentrateComplete H2O Minerals · Liquid750 mcg per serving

Chelated SeleniumNHC Natural Healthy Concepts · Capsule200 mcg per serving

Yeast-Free SeleniumSuperiorLabs · Capsule200 mcg per serving

Selenium 200 mcgAN Amazing Nutrition Amazing Formulas · Tablet or Pill50 mcg per serving

Selenium 200 mcgNatural Grocers by Vitamin Cottage · Capsule200 mcg per serving

Selenium 200 mcg21st Century · Capsule200 mcg per serving

Selen-E-400XYMOGEN · Softgel Capsule50 mcg per serving

SeMetAOR Advanced Orthomolecular Research Premium · Capsule55 mcg per serving

Selenium 50 mcgSolgar · Tablet or Pill50 mcg per serving

Selenium 200 mcgWonder Laboratories · Capsule200 mcg per serving

Selenium 200 mcgDr. Clark Store · Capsule200 mcg per serving

SelenoExcell 200 mcgDr. Clark Store · Capsule200 mcg per serving

Se-100Bio-Tech Pharmacal · Capsule100 mcg per serving

Selenium 100 mcgSolgar · Tablet or Pill100 mcg per serving

Selenium 200 mcgSolgar · Tablet or Pill200 mcg per serving

Bio-True SeleniumInfoWars Life · Capsule200 mcg per serving

SeleniumHigher Nature · Tablet or Pill200 mcg per serving

Selenium 200 mcgDr. Clark Research Association Dr. Clark Zentrum · Capsule200 mcg per serving

SeleniumGlobal Healing Center · Capsule200 mcg per serving

Selenium CWSGenestra Brands · Liquid100 mcg per serving

Oligo SeleniumMBi Nutraceuticals · Liquid900 mcg per serving

Se-Methyl L-Selenocysteine 200 mcgLife Extension · Capsule200 mcg per serving

Seleno-MethionineDouglas Laboratories · Capsule200 mcg per serving

Selenium SolutionNutriCology · Liquid100 mcg per serving

Selenium High Dose DropsNutriCology · Liquid100 mcg per serving

Super Selenium 200 mcgViva Vitamins · Capsule200 mcg per serving

Vitamin E-400 IU With Selenium 50 mcgVitamin World · Softgel Capsule50 mcg per serving

Selenium (Selenomethionine)Pure Encapsulations · Capsule200 mcg per serving

Selenium 100 mcgSwanson · Capsule100 mcg per serving

Selenium ForteAB American Biologics · Capsule200 mcg per serving

Selenium + Vitamin E 50 mcg, 400 IUDouglas Laboratories · Softgel Capsule50 mcg per serving

Super Natural SeleniumVibrant Health · Capsule100 mcg per serving

HP8 Herbal Prostate Support FormulaAmerican BioSciences · Capsule200 mcg per serving

Selenium 200 mcgHighland Laboratories · Tablet or Pill200 mcg per serving

Reacted SeleniumOrtho Molecular Products · Capsule200 mcg per serving

Selenium 200 mcgSeeking Health · Capsule200 mcg per serving

Selenium ConcentrateComplete H2O Minerals · Liquid250 mcg per serving

Selenium 200 mcgWindmill · Tablet or Pill200 mcg per serving

Selenium (Selenomethionine) 50 mcgWindmill · Tablet or Pill50 mcg per serving

Selenium (Citrate)Pure Encapsulations · Capsule200 mcg per serving

100% Natural E-400 IU With Selenium 50 mcgVitamin World · Softgel Capsule50 mcg per serving

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).