Supplements

Selenium in supplements · page 103

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 103 of 107

NAC 600 mgNOW · Capsule25 mcg per serving

StemLiverStemFoods Holistics · Capsule100 mcg per serving

Don't Pause For WomenANTIAGING Institute of California · Capsule100 mcg per serving

Immune Source MultiplexViva Vitamins · Tablet or Pill54 mcg per serving

CatalystD'Adamo Personalized Nutrition · Capsule100 mcg per serving

ViruTechOnnit · Capsule55 mg per serving

Thyro8A Deal Media Company · Tablet or Pill200 mcg per serving

Vitamin E SeleniumWonder Laboratories · Capsule200 mcg per serving

Cell SupportPhysician's Strength · Capsule60 mcg per serving

SeleniumCodeage · Capsule200 mcg per serving

Antioxidant Protection FormulaWindmill · Tablet or Pill200 mcg per serving

Complete Prostate Health FormulaWindmill Rx Premium Vitamins · Other (e.g. tea bag)200 mcg per serving

Big-V Triple StrengthBricker Labs · Capsule33 mcg per serving

Super AntioxidantVitamin World · Softgel Capsule50 mcg per serving

Vitamin E 400 IU With SeleniumVitamer Laboratories · Capsule100 mcg per serving

Selenium ConcentrateComplete H2O Minerals · Liquid250 mcg per serving

Formula 23 Thyroid SupportNESS Nutritional Enzyme Support System · Capsule20 mcg per serving

ProstateProEnzol · Capsule75 mcg per serving

SeleniumInnate Response Formulas · Tablet or Pill50 mcg per serving

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

Selenium 200 mcgNutraBio · Capsule200 mcg per serving

E-400 D-Alpha with Mixed TocopherolsNOW · Softgel Capsule100 mcg per serving

Selenium Pure 200 mcgPure Naturals · Tablet or Pill200 mcg per serving

Selenium 200 mcgSolaray · Capsule200 mcg per serving

Selenium 100 mcgCountry Life · Tablet or Pill100 mcg per serving

Selenomethionine 200 mcgNeurobiologix · Capsule200 mcg per serving

Selenium 200 mcgNature's Way · Capsule200 mcg per serving

Selenium GlycinateBluebonnet · Capsule200 mcg per serving

Selenium 100 mcgKirkman · Capsule100 mcg per serving

Selenium 100 mcgCountry Life · Tablet or Pill100 mcg per serving

SeleniumPerformance Lab · Capsule100 mcg per serving

Nutrisorb SeleniumBioCare · Liquid180 mcg per serving

Selenium 200 mcgThorne · Capsule200 mcg per serving

Selenium 200 mcgProtocol For Life Balance · Capsule200 mcg per serving

Pyruvate - F.R.I.Douglas Laboratories · Capsule100 mcg per serving

Selenium PlusDouglas Laboratories · Capsule200 mcg per serving

Selenium High Dose Drops 100 mcgAllergy Research Group · Liquid100 mcg per serving

Selenium 200 mcgVital Nutrients · Capsule400 mcg per serving

High Potency Selenium 200 mcgNature's Truth · Tablet or Pill200 mcg per serving

Selenium 100 mcgSwanson · Capsule100 mcg per serving

Albion Selenium Complex 200 mcgSwanson · Capsule200 mcg per serving

SelenoExcell Selenium 200 mcgSwanson · Capsule200 mcg per serving

SeMSC Selenium 200 mcgSwanson · Capsule200 mcg per serving

SeleniumBioCare · Capsule100 mcg per serving

Selenium 200 mcgOrzax · Capsule200 mcg per serving

Selenium 100 mcgNOW · Tablet or Pill100 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).