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 120 of 203), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Muscle Infusion Black Vanilla BeastNutrex Research · off the market0.5 mg
- Muscle Infusion Black Vanilla VillainNutrex Research0.5 mg
- Muscle Infusion ChocolateNutrex Research0.63 mg
- Muscle Infusion Chocolate Banana CrunchNutrex Research0.63 mg
- Muscle Infusion Chocolate Peanut Butter CrunchNutrex Research0.63 mg
- Muscle Infusion VanillaNutrex Research0.63 mg
- Muscle Maker Chocolate ShakeGiant Sports0.15 mg
- Muscle Maker Vanilla ShakeGiant Sports0.15 mg
- Muscle Mass Gainer ChocolateLabradain a blend
- Muscle Matrix MRP Banana CreamNutraBio0.753 mg
- Muscle Matrix MRP Chocolate MilkshakeNutraBio · off the market0.752 mg
- Muscle Matrix MRP Creamy VanillaNutraBio · off the market0.752 mg
- Muscle Matrix MRP Strawberry SmoothieNutraBio0.753 mg
- Muscle Matrix MRP Women's Formula Banana CreamNutraBio0.753 mg
- Muscle Matrix MRP Women's Formula Chocolate MilkshakeNutraBio0.752 mg
- Muscle Matrix MRP Women's Formula Creamy VanillaNutraBio0.753 mg
- Muscle Matrix MRP Women's Formula Strawberry SmoothieNutraBio0.753 mg
- Muscle Milk Banana Creme ShakeChampBevno amount
- Muscle Milk Brownie BatterCytoSport0.5 mg
- Muscle Milk ChocolateCytoSport0.5 mg
- Muscle Milk Chocolate Milk ShakeChampBevno amount
- Muscle Milk Collegiate Chocolate Milk ShakeCytoSport0.3 mg
- Muscle Milk Collegiate Vanilla Creme ShakeCytoSport0.3 mg
- Muscle Milk Cookies 'N' Creme ShakeChampBev0.33 mg
- Muscle Milk Light Banana CremeCytoSport0.5 mg
- Muscle Milk Light Cake BatterCytoSport0.5 mg
- Muscle Milk Light Chocolate MilkCytoSport0.5 mg
- Muscle Milk Light Peanut Butter ChocolateCytoSport0.5 mg
- Muscle Milk Light Vanilla CremeCytoSport0.5 mg
- Muscle Milk Orange CremeCytoSportin a blend
- Muscle Milk Pro Series Intense VanillaMuscle Milkin a blend
- Muscle Milk Pro Series Knockout ChocolateMuscle Milk0.4 mg
- Muscle Milk Strawberry BananaCytoSportin a blend
- Muscle Milk Vanilla Creme ShakeChampBev0.33 mg
- Muscle Optimeal Chocolate FlavorJarrow Formulas · off the market0.2 mg
- Muscle Optimeal Vanilla CremeJarrow Formulas · off the market0.2 mg
- Muscle Stress Recovery FormulaAA Anabolic Agents · off the market160 mg
- Muscle XGF Rich Chocolate CreamAST Sports Sciencein a blend
- Muscle XGF Vanilla Ice CreamAST Sports Sciencein a blend
- Muscle XPlosion Fruit PunchRightWay Nutrition · off the marketin a blend
- Muscle-AidBioGenesis Nutraceuticals · off the market25 mg
- Muscle-Mins Extra StrengthAA Anabolic Agents · off the market35 mg
- MuscLean Chocolate MilkshakeMetabolic Nutritionin a blend
- MuscLean Peanut Butter MilkshakeMetabolic Nutritionin a blend
- MuscLean Strawberry MilkshakeMetabolic Nutritionin a blend
- MuscLean Vanilla MilkshakeMetabolic Nutritionin a blend
- Mutli-ADEKCelebrate6 mg
- Mutli-Day MultivitaminNatural Wealth1.5 mg
- Mv Macular Vitamin BenefitsPRN Physician Recommended Nutriceuticals50 mg
- MVC - Fluoride 0.5 mgSancilio & Company1.05 mg