Supplements

Selenium in supplements · page 105

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 105 of 107

Selenium (Selenomethionine)Pure Encapsulations · Capsule200 mcg per serving

ROX Super Antioxidant With ResveratrolSystemic Formulas Bio Nutriment · Other (e.g. tea bag)20 mcg per serving

Natural E-400Protocol For Life Balance · Softgel Capsule100 mcg per serving

Beta-Sitosterol PlusBotanic Choice · Capsule200 mcg per serving

Tocotrienols & E ComplexNOW · Softgel Capsule70 mcg per serving

E & SeleniumMegaFood · Tablet or Pill100 mcg per serving

Olive Leaf Extract 700 mgNova Nutritions · Capsule50 mcg per serving

Vitamin E CompleteNature's Sunshine · Softgel Capsule25 mcg per serving

Selenium 50 mcgBronson · Tablet or Pill50 mcg per serving

CoQ10 50 mgNOW · Softgel Capsule70 mcg per serving

Detox ASFSAN · Capsule63 mcg per serving

Seleno-6 50 mcgSolgar · Tablet or Pill50 mcg per serving

Seleno-6 200 mcgSolgar · Tablet or Pill200 mcg per serving

Selenium 200 mcgGNC · Other (e.g. tea bag)200 mcg per serving

Selenium 100 mcgGNC · Tablet or Pill100 mcg per serving

E-400 IU with Selenium 50 mcgEsmond Natural · Softgel Capsule50 mcg per serving

Selenium + Vitamin EDouglas Laboratories · Softgel Capsule50 mcg per serving

PhenorexGaspari Nutrition · Capsule4.0 mcg per serving

Selenium 50 mcgIndiana Botanic Gardens · Tablet or Pill50 mcg per serving

Vitamin E plus Selenium 268 mgThe Vitamin Shoppe · Softgel Capsule50 mcg per serving

Vitamin E Complete with SeleniumNature's Sunshine · Capsule25 mcg per serving

Selenium 200 mcgThompson · Tablet or Pill200 mcg per serving

Seleno-IodideOrtho Molecular Products · Capsule100 mcg per serving

TestekQNT · Capsule200 mcg per serving

Vitamin Dry E With Yeast Free SeleniumSolgar · Capsule150 mcg per serving

Selenium 200 mcgSource Naturals · Tablet or Pill200 mcg per serving

VioletBioPharmX · Tablet or Pill55 mcg per serving

CoQ10 plus Selenium YeastDoctor's Best · Capsule200 mcg per serving

Selenium 200 mcgNutraBio · Capsule200 mcg per serving

Selenium Xtra 200 mcgSundown Naturals · Tablet or Pill200 mcg per serving

Sel-E-ChromDouglas Laboratories · Capsule50 mcg per serving

Grape Seed Xtra 50 mgSundown Naturals · Capsule15 mcg per serving

Natural E-400 IU With Selenium 50 mcgNature's Bounty · Softgel Capsule50 mcg per serving

Iodine SynergyDesigns for Health · Capsule40 mcg per serving

Selenium 50 mcgWonder Laboratories · Capsule50 mcg per serving

Selenium SolutionAllergy Research Group · Liquid100 mcg per serving

Selenium 250 mcgDoctor's Best · Capsule200 mcg per serving

Aller-Aid Formula IIAllergy Research Group · Capsule200 mcg per serving

E-Sel 800Carlson · Softgel Capsule100 mcg per serving

E-Sel 800 IUCarlson · Softgel Capsule100 mcg per serving

Gammadyn SeUNDA Gammadyn · Liquid40 mcg per serving

Seleno-MethionineDouglas Laboratories · Capsule200 mcg per serving

Selenium MaxConfidence USA · Tablet or Pill300 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).