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 108 of 203), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Monster Milk Banana CremeCytoSport1.5 mg
- Monster Milk Brownie BatterCytoSport2 mg
- Monster Milk Caffeinated Mocha LatteCytoSport2 mg
- Monster Milk Cake BatterCytoSport2 mg
- Monster Milk ChocolateCytoSport1.5 mg
- Monster Milk ChocolateCytoSport Monster Series1.5 mg
- Monster Milk Chocolate Chip Cookie DoughCytoSport2 mg
- Monster Milk Cookies 'N CremeCytoSport1.5 mg
- Monster Milk Cookies 'N CremeCytoSport Monster Series1.5 mg
- Monster Milk Lactose Free ChocolateCytoSport2 mg
- Monster Milk Peanut Butter ChocolateCytoSport1.5 mg
- Monster Milk Peanut Butter ChocolateCytoSport Monster Series1.5 mg
- Monster Milk Strawberries 'N CremeCytoSport1.5 mg
- Monster Milk StrawberryCytoSport Monster Series1.5 mg
- Monster Milk VanillaCytoSport1.5 mg
- Monster Milk VanillaCytoSport Monster Series1.5 mg
- Monster Milk Vanilla CremeCytoSport1.5 mg
- Monster MultiCytoSport50 mg
- Monster Muscle Up-Gainer Cookies & CreamColossal Labs0.375 mg
- Mood & Stress SupportViMulti Beautiful Me2 mg
- Mood + Gut ReviveLifeBiome20 mg
- Mood Aid With 5-HTP & St. John's WortNature's Way0.25 mg
- Mood BalanceSource Naturals25 mg
- Mood BoostRise-N-Shine25 mg
- Mood ComplexNutricost2 mg
- Mood Improve Advanced Mood Nutrition4 Organics2 mg
- Mood Improve Advanced Mood Support4 Organics2 mg
- Mood Stabilizer-XLElevate Recovery Supplements · off the market2 mg
- Mood SupportViMulti2 mg
- Mood SupportNOW2 mg
- Mood, Neuro & Immune SupportVitinity18 mg
- More GreensPurium Health Products · off the marketin a blend
- More Than A Multiple Iron-Free/Vegetarian FormulaAmerican Health37.5 mg
- More Than A Multiple Multivitamin For MenAmerican Health500 mg as transcribed, likely a slip
- More Than A Multiple Multivitamin For WomenAmerican Health37.5 mg
- More Than A Multiple Multivitamin FormulaAmerican Health37.5 mg
- More Than A Multiple With Brain EssentialsAmerican Health20 mg
- More Than A Multiple With Cardio EssentialsAmerican Health20 mg
- More Than A Multiple With Energy EssentialsAmerican Health35 mg
- More Than A Multiple With Vision EssentialsAmerican Health20 mg
- MoringaBest Naturals2 mg
- Moringa Leaf PowderOrganic Aura2 mg
- MorningLife Time Fitness · off the market50 mg
- Morning Buzz Berry BlastNew Health Corp.75 mg
- Morning Buzz Blue RaspberryNew Health Corp.3 mg
- Morning Buzz Fruit PunchNew Health Corp.3 mg
- Morning Buzz Orange BurstNew Health Corp.3 mg
- Morning Buzz Sport Blueberry LemonadeNew Health Corp.3 mg
- Morning Liquid MultiVitaminCountry Farms2.4 mg
- Morning Man GreensMorning Man3 mg