vitamin
Thiamin supplements
Half of the 9,830 thiamin supplements in the NIH label database that print an amount list 5 mg or less per serving; the middle half list 1.5 mg to 25 mg (DSLD version 9.4.0, January 2026). The 103 products whose only supplement ingredient is thiamin list a median of 100 mg.
- Products listing it
- 10,1239,830 print an amount; 277 list it inside a blend without an amount
- Median per serving
- 5 mgmiddle half 1.5 mg to 25 mg
- FDA Daily Value
- 1.2 mgthe median is 417% of it
How much thiamin do supplements contain?
The median product lists 5 mg per serving. One in ten lists 0.6 mg or less, one in ten 50 mg or more. The amount printed most often is 1.5 mg (1,163 products).
Products by amount of thiamin per serving
9,830 products, log scale; extreme 0.2% at each end left out of the drawing.
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
How do the amounts compare with the Daily Value and the upper limit?
The FDA Daily Value for thiamin is 1.2 mg (adults and children 4 and older). The median product gives 417% of it per serving; the 90th percentile 4167%.
The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.
Sources: 21 CFR 101.9(c)(8)(iv) (Daily Values); Institute of Medicine, DRI summary tables (2011) (upper limits); on reading them, the FDA's Daily Value page.
Which products list the most thiamin?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- Super Potency Vitamin B 1 (Thiamin) 500 mgSolgar500 mg
- Vitamin B1 High Potency 500 mgBIOVEA500 mg
- Vitamin B1 500 mgNutraBio500 mg
- Vitamin B1 500 mgDr. Clark Store500 mg
- Vitamin B1 500 mgDr. Clark Research Association Dr. Clark Zentrum500 mg
- Vitamin B-1 500 mgVitalBulk500 mg
- Vitamin B-1 500 mgBest Naturals500 mg
- Vitamin B1 500 mgVitamatic500 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 5 mg; those entered in 2025, 5 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 246 | 5 mg |
| 2012 | 754 | 7.5 mg |
| 2013 | 827 | 5 mg |
| 2014 | 490 | 3 mg |
| 2015 | 457 | 3 mg |
| 2016 | 449 | 5 mg |
| 2017 | 490 | 7.75 mg |
| 2018 | 398 | 2.5 mg |
| 2019 | 536 | 3 mg |
| 2020 | 900 | 5 mg |
| 2021 | 819 | 4 mg |
| 2022 | 934 | 3 mg |
| 2023 | 819 | 4.8 mg |
| 2024 | 918 | 5 mg |
| 2025 | 793 | 5 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing thiamin by DSLD product type
Brands listing it most: Douglas Laboratories (245), Nature's Way (221), Nature's Plus (207), Country Life (85), ProCaps Laboratories (79), Bronson (78), Rainbow Light (76), NOW (70), Metagenics (64), New Chapter (62).
Every product listing thiamin
10,123 products, A to Z by name (page 55 of 203), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Electrolyte Fizz Lemon LimeBodyTech0.45 mg
- Electrolyte Fizz WatermelonBodyTech0.45 mg
- Electrolyte Plus CBioGenesis Nutraceuticals · off the market0.38 mg
- Electrolyte Powder CherryTerra Origin1.2 mg
- ElementalArms Race Nutrition6 mg
- Elemental Select VanillaMoss Nutrition · off the market0.5 mg
- Elite AthleteCooper Complete3 mg
- Elite Athlete Multi-VitaminDouglas Laboratories · off the market3 mg
- Elite Mass Hi-Protein Muscle Gainer Double ChocolateDymatize Nutrition · off the market0.45 mg
- Elite Mass Hi-Protein Muscle Gainer Fudge BrownieDymatize Nutrition · off the market0.45 mg
- Elite Mass Hi-Protein Muscle Gainer Vanilla Milk ShakeDymatize Nutrition · off the market0.45 mg
- Elite MultivitaminPurity Products12 mg
- Elite OBTrigen Laboratories2 mg
- Elite Recoup Blue RaspberryDymatize Nutrition · off the market1.5 mg
- Elite Recoup Fruit PunchDymatize Nutrition · off the market1.5 mg
- Elite Recoup GrapeDymatize Nutrition · off the market1.5 mg
- Elite Recoup LemonadeDymatize Nutrition · off the market1.5 mg
- Elite Recoup OrangeDymatize Nutrition · off the market1.5 mg
- Elite Recoup Tropical SplashDymatize Nutrition · off the market1.5 mg
- Elite Recoup WatermelonDymatize Nutrition · off the market1.5 mg
- Elite Training PacksPrecision Engineered · off the market52 mg
- Embrace Prenatal 35+Rainbow Light · off the market24 mg
- Emerald Garden Organic ChlorellaSource Naturals0.038 mg
- Emergen-C 1,000 mg Vitamin C TangerineAlacer Corp · off the market0.38 mg
- EmmaEmma20 mg
- EMPowerplusTruehope4.5 mg
- EMPowerplus AdvancedTruehope2.4 mg
- EMPowerplus Berry BlendTruehope4.5 mg
- EMPowerplus Mint ChocolateTruehope4.5 mg
- EMPowerplus Q96Q Sciences4.8 mg
- Emulsion De Escocia Orange FlavorEmulsion De Escocia1.5 mg
- eMultiEvolved Natural Solutions · off the market50 mg
- End Fatigue Daily Energy B ComplexIntegrative Therapeutics75 mg
- End Fatigue Daily Energy Enfusion BerryIntegrative Therapeutics75 mg
- End Fatigue Daily Energy Enfusion Berry-FlavoredIntegrative Therapeutics · off the market75 mg
- End Fatigue Daily Energy Enfusion CitrusIntegrative Therapeutics75 mg
- End Fatigue Daily Energy Enfusion Citrus-Flavored Drink MixIntegrative Therapeutics · off the market75 mg
- Endless Energy Huckleberry HypeOLLY0.15 mg
- Endless Energy Lemon ZingerOLLY0.15 mg
- Endocrine CompleteDouglas Laboratories25 mg
- Endur-B ComplexEndurance Products Company15 mg
- Endur-VM Multi-Vitamin & MineralEndurance Products Company5 mg
- Endura Lemon-Lime FlavorMetagenics2 mg
- Endura Lemonade FlavorMetagenics2 mg
- Endura Orange FlavorMetagenics2 mg
- EnduranceRyno Power0.6 mg
- Endure Creatine Serum Lemon LimePhytonutritia2 mg
- Endure Creatine Serum RaspberryPhytonutritia2 mg
- Endurlyte Natural Orange FlavorGenestra Brands0.67 mg
- Energetic Mens Formula Multi Vitamin PlusMeijer Naturals50 mg