Home/ Supplements/ Thiamine/ Best Products

Best Thiamine Supplements (2026)

Ranked by safety score and evidence coverage from 0 independent research sources

1335
Products Analyzed
0
Research Sources
96
Avg Safety Score
100%
Evidence-Backed

What the Research Says

✨ AI-generated · Qwen 3.6 · methodology

Thiamine (Vitamin B1) is an essential micronutrient critical for glucose metabolism and neurological function. Research indicates it is highly effective for treating thiamine deficiency syndromes and is frequently studied as part of a metabolic cocktail for critically ill patients, though its efficacy in general health conditions remains mixed.

Wernicke-Korsakoff Syndrome: strong Sepsis and Septic Shock: moderate Type 2 Diabetes: weak Heart Failure: weak Low Back Pain: moderate

AI-generated summary. See methodology.

Rankings

Top-Ranked Thiamine Products

Ranked by safety score (0–100), then evidence coverage.

1
B-1 100 mg
Vitamin World · Tablet or Pill
100 100%
2
Vitamin B-1 100 mg
Nature's Bounty · Tablet or Pill
100 100%
3
High Potency B1 100 mg
Sundown Naturals · Tablet or Pill
100 100%
4
Bio-Cetin Forte
Douglas Laboratories · Capsule
100 100%
5
Vitamin B-1 100 mg Supplement
Nature Made · Tablet or Pill
100 100%
6
Vitamin B1
Whole Foods · Tablet or Pill
100 100%
7
Vitamin B1 100 mg
Country Life · Tablet or Pill
100 100%
8
Benfotiamine-V 150 mg
Benfotiamine.Net · Capsule
100 100%
9
Super B Complex
Nature's Measure · Tablet or Pill
100 100%
10
Vitamin B-1 Thiamine 100 mg
Martin Avenue Pharmacy · Tablet or Pill
100 100%
11
Vitamin B-1 100 mg
Puritan's Pride Premium · Tablet or Pill
100 100%
12
Vitamin B-1 100 mg
Rite Aid Pharmacy · Tablet or Pill
100 100%
13
Vitamin B-1 50 mg
Rugby · Tablet or Pill
100 100%
14
B1 100 mg
Thompson · Tablet or Pill
100 100%
15
B Complex CWS
Pharmax · Liquid
100 100%
16
Vitamin B1 250 mg
The Vitamin Shoppe · Capsule
100 100%
17
Vitamin B1 250 mg
The Vitamin Shoppe · Capsule
100 100%
18
B-1 250 mg
Vitamin World · Tablet or Pill
100 100%
19
Energy+
Sho · Softgel Capsule
100 100%
20
High Potency B Complex
Rexall Naturalist · Tablet or Pill
100 100%

Showing top 20 of 1335 products. View all products →

How We Rank

Products are ranked by safety score (0–100), which considers UL exceedance, unsupported health claims, and proprietary blend disclosure. Products with equal safety scores are then sorted by evidence coverage — the percentage of ingredients backed by Tier-A or Tier-B research.

Safety scores are computed from product label data (DSLD) cross-referenced with 0 research sources. See our Editorial Policy for full methodology.