Overview
Lipid-soluble thiamine derivative with superior tissue penetration — used in diabetic neuropathy.
- Whole-food sources (animal products for fat-soluble and B-complex vitamins; produce for water-soluble vitamins)
- Fortified foods (cereals, dairy, plant milks, nutritional yeast)
- Multivitamins or stand-alone supplements in synthetic or food-derived form
- Capsule or softgel
- Sublingual tablet or liquid
- Methylated active form for sensitive individuals
- Multivitamin matrix
Forms & variants of Vitamin B1 (Thiamine)
Different chemical forms of Vitamin B1 (Thiamine) behave differently. Browse each form's mechanism, bioavailability, and best-use context.
Mechanism of action
Activates transketolase, shunting glucose metabolites away from AGE-forming pathways.
- · Pentose phosphate pathway
- · AGE reduction
Effects on the body
Organ system effects
Benfotiamine acts on central nervous system targets implicated in attention, memory, and neuroprotection.
Evidence-based benefits
Reduces diabetic neuropathy symptoms
Moderate evidencePotential side effects
- · Benfotiamine is generally well-tolerated at evidence-based doses
- · Mild GI discomfort (nausea, loose stools, or bloating) possible at higher intakes
- · Headache or transient fatigue reported by a small fraction of users
- · Allergic or hypersensitivity reaction (rash, itching, swelling)
- · Sleep disturbance if taken late in the day
- · Discontinue and seek medical advice if symptoms are severe, persistent, or include difficulty breathing
Drug interactions
Supplement interactions
- Omega-3 (EPA/DHA)Membrane fluidity and neuronal signaling support.
- Alpha-GPC or CDP-cholineProvides choline substrate for acetylcholine synthesis.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
Affiliate links — we may earn a commission at no extra cost to you. Amazon code supplementsch-20 is auto-applied at checkout. We don't endorse specific brands; verify third-party testing (USP, NSF, Informed Sport) before purchase.
Third-party testedIndependently verified Benfotiamine — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Benfotiamine third party tested NSF
CapsulesPre-measured Benfotiamine capsules — easiest for travel and consistent daily dosing without scoops or scales.Benfotiamine capsules
PowderBulk unflavored Benfotiamine powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Benfotiamine powder unflavored
Best sellersMost-purchased Benfotiamine products on Amazon — a quick way to see what's reviewed widely before you commit.Benfotiamine best sellerScientific evidence8Show studiesHide studies
Benfotiamine for diabetic neuropathy
Stracke H, et al.
6-week RCT of benfotiamine in diabetic neuropathy.
Improved neuropathy symptom score and vibration perception.
PubMed: Benfotiamine — Reduces diabetic neuropathy symptoms
Live PubMed search
Live results for "Benfotiamine Reduces diabetic neuropathy symptoms" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Benfotiamine and "Reduces diabetic neuropathy symptoms". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Benfotiamine — randomized controlled trial
Live PubMed search
Live results for "Benfotiamine randomized controlled trial" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Benfotiamine and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Benfotiamine — meta-analysis
Live PubMed search
Live results for "Benfotiamine meta-analysis" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Benfotiamine and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Benfotiamine — pharmacokinetics
Live PubMed search
Live results for "Benfotiamine pharmacokinetics" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Benfotiamine and "pharmacokinetics". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Benfotiamine — safety adverse events
Live PubMed search
Live results for "Benfotiamine safety adverse events" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Benfotiamine and "safety adverse events". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Benfotiamine — dose response
Live PubMed search
Live results for "Benfotiamine dose response" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Benfotiamine and "dose response". Filter by RCT, meta-analysis, or year on the results page.
Google Scholar: Benfotiamine — clinical evidence
Live Scholar search
Cross-database citation index for Benfotiamine as it relates to "clinical evidence".
Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.