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 185 of 203), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Vegan Smart Vanilla CremeNaturade0.75 mg
- Vegan Smart Wild BerriesNaturade · off the market0.75 mg
- Vegan True Vegan Force MultipleSource Naturals50 mg
- Vegan1 ChaiNutrition530.75 mg
- VeganPro Complex Chocolate FlavoredThorne50 mg
- VeganPro Complex Vanilla FlavoredThorne · off the market50 mg
- VeganSmart All-In-One Nutritional Shake VanillaNaturade0.75 mg
- VeganSmart All-In-One Nutritional Shake Wild BerriesNaturade0.75 mg
- Vegetarian MultiVitaCeutical Labs75 mg
- Vegetarian MultiNeoLife Nutritionals10 mg
- Vegetarian MultipleSolgar26 mg
- Vegetarian Multiple with Beta CaroteneSchiff Daily Wellness15 mg
- Vegetarian SupportCountry Life · off the market25 mg
- Vegetarian Women's Multi with Iron365 Everyday Value25 mg
- Veggie ChoiceBluebonnet50 mg
- Veggie Meal Replacement Chocolate MochaMRM · off the market0.3 mg
- Veggie Meal Replacement Chocolate Mocha FlavoredMRM Nutrition0.2 mg
- Veggie Meal Replacement Vanilla BeanMRM0.3 mg
- Veggie Meal Replacement Vanilla Bean FlavoredMRM Nutrition0.2 mg
- VeggiFittRightWay Nutrition · off the market0.75 mg
- VeggiFitt Chocolate Hazelnut FlavorRightWay Nutrition · off the market0.75 mg
- Vegi SourceBronson Laboratories25 mg
- VegiSource MultivitaminViva Vitamins60 mg
- Velocity1ViZN · off the market1.4 mg
- VemmaVemma · off the market1.5 mg
- VenoflashEfficient Laboratories12 mg
- Venoflash ForteEfficient Laboratories · off the market6 mg
- VenosanGM Germa2.5 mg
- VGF 25+ For MenPro Grade · off the market1.5 mg
- Vi-Daily LiquidGeri-Care0.842 mg
- Vi-Min CapsVitamin Discount Center · off the market50 mg
- Vi-StressRugby10 mg
- Vibe OriginalEniva1.5 mg
- VibranceEu Natural15 mg
- Vibrance Prime Hair Skin & Nails FormulaPrime Nutrition Female Series · off the market25 mg
- Vidoplex-MLDC10 mg
- VigRx Tongkat Ali LJ100Leading Edge Health50 mg
- Virt-C DHAVirtus Pharmaceuticals2 mg
- Virt-CapsVirtus Pharmaceuticals1.5 mg
- Virt-NateVirtus Pharmaceuticals1.8 mg
- Virt-Nate DHAVirtus Pharmaceuticals3 mg
- Virt-PNVirtus Pharmaceuticals3 mg
- Visible EyesEsmond Natural9 mg
- Visio PlexProgressive Professional from Progressive Laboratories19 mg
- VisionOweli8 mg
- VisionAPOPTOSIS Nutraceuticals8 mg
- Vision CompleteBronson ONE10 mg
- Vision FactorsMichael's Naturopathic Programs105 mg
- Vision OptimizerJarrow Formulas12 mg
- Vision Optimizer FormulaPrincess Lifestyle3.6 mg