At 500 mg per tablet, this delivers **Vitamin B1** at 5x the top of the typical clinical range (25–100 mg) and over 400x the RDA. Thiamine is water-soluble, so your body excretes what it can't use — but if you're supplementing for energy metabolism or nerve support, this gives you far more than you need in a single dose.
The form is thiamine hydrochloride, which is the standard supplemental form with decent absorption but lower bioavailability than fat-soluble alternatives like benfotiamine. If you're targeting peripheral nerve health or blood sugar support specifically, benfotiamine would deliver more of the active compound to your tissues at a lower dose.
The main consideration is whether you actually need this much. For general B1 support, a B-complex with 25–100 mg of thiamine would cover your bases. This mega-dose format is more relevant if your healthcare provider has identified a specific deficiency or increased need.
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What it does
Vitamin B1
Form not confirmedGrade —
Helps the body release energy from food and supports normal cell function.
Ingredients (1)
Other ingredients
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Dicalcium PhosphateBinder
Calcium and phosphorus compound used as binder
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Lab testing
How to take it
With food
On the label
Suggested use: As a dietary supplement for adults, take one (1) tablet daily, preferably with a meal or as directed by a healthcare practitioner.
Price check
$16.06
Near the median of 57 vitamin B1 supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.
Not medical advice. Consult your healthcare professional.