Vitamin B1
This is what the ingredient is.
Vitamin B1 (Thiamin) is an essential water-soluble vitamin required for carbohydrate metabolism and nerve function.
Here is why it shows up on the label.
Added to fortify refined grains, cereals, and flour. Essential for energy metabolism and nervous system health.
Here is what food agencies say.
FDA mandates enrichment of refined grain products. EFSA established adequate intake levels. Required fortification globally.
Here is what research has found.
Deficiency causes beriberi. Well-established essential nutrient. No upper limit set due to low toxicity.
Here are a few things worth knowing.
Generally safe even at high doses. Water-soluble with excess excreted in urine. No known toxicity.
Sources
- FDA Fortification Standards
- EFSA Dietary Reference Values
- NIH Office of Dietary Supplements
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.