The Vitamin Shoppe Vitamin B1 100 mg
Brand: The Vitamin Shoppe · Form: CAPSULE [E0159]
Our assessment
Our assessment: The data shows that Vitamin B1 (thiamine) is essential for energy metabolism and nerve function. For a 100 mg dose, this is significantly above the recommended dietary allowance, which is 1.2 mg for men and 1.1 mg for women [NIH ODS]. The evidence suggests this high dose is generally not needed for most people, as the body excretes excess water-soluble vitamins. However, it may be used therapeutically for specific conditions like thiamine deficiency [NIH ODS].
How it works
Think of vitamin B1 as a key metabolic helper — it helps convert the food you eat into usable energy for your cells [NIH ODS]. It is also critical for proper nerve signal transmission and heart function. Without enough B1, your body cannot efficiently break down carbohydrates or maintain healthy nerve tissue [NIH ODS].
Safety profile
Data not available on specific adverse event report counts for this product. However, thiamine is considered safe even at high doses because excess amounts are quickly removed from the body through urine [NIH ODS]. There is no established upper limit for vitamin B1, but very high intakes may cause mild stomach upset in some individuals [NIH ODS].
Our recommendation
For most people, a standard multivitamin or a 50 mg B-complex is sufficient [NIH ODS]. The 100 mg dose is best reserved for individuals with a confirmed deficiency, certain medical conditions (like alcoholism), or under a doctor's guidance. Start with a lower dose unless you have a specific need [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | The Vitamin Shoppe |
|---|---|
| Serving Size | |
| Contents | 100.0 Capsule(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide