Bnf8.5

Benfotiamine

vitamin

Benfotiamine (Fat-Soluble Vitamin B1)

Fat-soluble form of vitamin B1 with superior absorption that protects against glycation and supports nerve health.

longevityvitamin B1neuropathyblood sugarAGEs

37+ studies

Evidence

Reviewed 19 days ago

high

Safety

150-600mg daily

Dose

6-12 weeks

Time to Effect

Benfotiamine capsules

Best Form

Benfotiamine is a synthetic, fat-soluble derivative of thiamine (B1) with 5x greater bioavailability. It reduces advanced glycation end-products (AGEs) that damage nerves and blood vessels in diabetes. Used clinically for diabetic neuropathy and increasingly for anyone concerned about blood sugar, nerve health, or alcohol-related B1 depletion.

Mechanisms of Action

🛡️

AGE Inhibition

Blocks formation of damaging glycation products

⚡

Nerve Protection

Protects nerve cells from glucose damage

Biological PathwayBeta

How Benfotiamine works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.

Recommended Dose

150-600mg daily

150mg600mg

Optimal Timing

With meals

Take with food

Available Forms

Form	Type
💊Benfotiamine capsules	Recommended
💊Combined with other B vitamins	Alternative

Often combined with alpha-lipoic acid for enhanced neuropathy support.

Duration

Minimum: 6 weeks

Optimal: 12 weeks

Cycling: Not required

Note: Fat-soluble — take with food containing fat for best absorption.

✨

Neuropathy Relief

Reduced numbness, tingling, pain

⏱️ 4-12 weeks

60% of users notice thispositive

📉

AGE Reduction

Lower glycation markers

⏱️ 8-12 weeks

55% of users notice thispositive

High SafetyMax safe dose: Up to 600mg/day used in studies

🟡

Diabetics

Commonly used; may help with neuropathy

Who Should NOT Take This

Known allergy or hypersensitivity to Benfotiamine or related compounds

Drug Interactions

Fluorouracil (5-FU)moderate

Thiamine may interfere with this cancer drug

Possible Side Effects

GI upset

mildrare

Tip: Take with food

Warnings

May lower blood sugar — monitor glucose if diabetic or on hypoglycemic medication
Limited long-term safety data at high doses
Not a substitute for managing blood sugar through diet and medication

⟡ Alpha-Lipoic Acid

complementary

Both support nerve health in diabetes

Enhanced neuropathy protection

Top studies from 37+ peer-reviewed papers

📚meta-analysisn=1354

DOI

Raval AD et al. • The Cochrane database of systematic reviews (2015)

“There is an absence of evidence to recommend the use of vitamin B therapy alone or combination for delaying progression of DKD.”

Key Findings:

There is an absence of evidence to recommend the use of vitamin B therapy alone or combination for delaying progression of DKD.
Thiamine was found to be beneficial for reduction in albuminuria in a single study; however, there was lack of any improvement in kidney function or blood pressure following the use of vitamin B preparations used alone or in combination.
These findings require further confirmation given the limitations of the small number and poor quality of the available studies.

📚meta-analysisn=364

DOI

Muley A et al. • BMJ open (2022)

“Benfotiamine reduced triglyceride level (MD, -1.10; 95% CI: -1.90 to -0.30) in 120 mg/day dose as compared with placebo 150 mg/day, however this was not demonstrated in higher doses.”

Key Findings:

There was a significant increase in high-density lipoprotein (HDL) (MD, 0.10; 95% CI: 0.10 to 0.20) at 3-month follow-up.
Benfotiamine reduced triglyceride level (MD, -1.10; 95% CI: -1.90 to -0.30) in 120 mg/day dose as compared with placebo 150 mg/day, however this was not demonstrated in higher doses.
Further research warranted to confirm findings

📚systematic-review

DOI

Raj V et al. • European review for medical and pharmacological sciences (2018)

“In the present review, we have comprehensively reviewed all the molecular targets modulated by BFT to provide mechanistic perspective to highlight its pleiotropic effects.”

Key Findings:

The reduction in AGEs subsequently decreases metabolic stress which benefits vascular complications seen in diabetes.
The effects of BFT on the AGE-dependent pathway is well established.
In the present review, we have comprehensively reviewed all the molecular targets modulated by BFT to provide mechanistic perspective to highlight its pleiotropic effects.

📚systematic-reviewn=741

DOI

Ang CD et al. • The Cochrane database of systematic reviews (2008)

“There are only limited data in randomised trials testing the efficacy of vitamin B for treating peripheral neuropathy and the evidence is insufficient to determine whether vitamin B is beneficial or harmful.”

Key Findings:

There are only limited data in randomised trials testing the efficacy of vitamin B for treating peripheral neuropathy and the evidence is insufficient to determine whether vitamin B is beneficial or harmful.
One small trial in alcoholic peripheral neuropathy reported slightly greater improvement in vibration perception threshold with oral benfotiamine for eight weeks than placebo.
In another small study, a higher dose of oral vitamin B complex for four weeks was more efficacious than a lower dose in reducing symptoms and signs.
Vitamin B administered by various routes for two to eight weeks was less efficacious than alpha-lipoic acid, cilostazol or cytidine triphosphate in short-term improvement of clinical and nerve conduction study outcomes.

📋preclinical

DOI

Hammes HP et al. • Nature Medicine (2003)

“Benfotiamine prevented microvascular damage through AGE inhibition.”

Key Findings:

Blocked AGE formation
Protected microvasculature
Mechanism established

View all 37+ studies

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Bnf8.5

Benfotiamine

vitamin

Benfotiamine (Fat-Soluble Vitamin B1)

Fat-soluble form of vitamin B1 with superior absorption that protects against glycation and supports nerve health.

longevityvitamin B1neuropathyblood sugarAGEs

37+ studies

Evidence

Reviewed 19 days ago

high

Safety

150-600mg daily

Dose

6-12 weeks

Time to Effect

Benfotiamine capsules

Best Form

Mechanisms of Action

🛡️

AGE Inhibition

Blocks formation of damaging glycation products

⚡

Nerve Protection

Protects nerve cells from glucose damage

Biological PathwayBeta

How Benfotiamine works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.

Supplement

Molecular Target

Biological Process

Health Outcome

Strong

Moderate

Emerging

strong

moderate

emerging

Tap node to isolate • Pinch to zoom • Tap edge for research

Recommended Dose

150-600mg daily

150mg600mg

Optimal Timing

With meals

Take with food

Available Forms

Form	Type
💊Benfotiamine capsules	Recommended
💊Combined with other B vitamins	Alternative

Often combined with alpha-lipoic acid for enhanced neuropathy support.

Duration

Minimum: 6 weeks

Optimal: 12 weeks

Cycling: Not required

Note: Fat-soluble — take with food containing fat for best absorption.

✨

Neuropathy Relief

Reduced numbness, tingling, pain

⏱️ 4-12 weeks

60% of users notice thispositive

📉

AGE Reduction

Lower glycation markers

⏱️ 8-12 weeks

55% of users notice thispositive

High SafetyMax safe dose: Up to 600mg/day used in studies

🟡

Diabetics

Commonly used; may help with neuropathy

Who Should NOT Take This

Known allergy or hypersensitivity to Benfotiamine or related compounds

Drug Interactions

Fluorouracil (5-FU)moderate

Thiamine may interfere with this cancer drug

Possible Side Effects

GI upset

mildrare

Tip: Take with food

Warnings

May lower blood sugar — monitor glucose if diabetic or on hypoglycemic medication
Limited long-term safety data at high doses
Not a substitute for managing blood sugar through diet and medication

⟡ Alpha-Lipoic Acid

complementary

Both support nerve health in diabetes

Enhanced neuropathy protection

Top studies from 37+ peer-reviewed papers

📚meta-analysisn=1354

DOI

Raval AD et al. • The Cochrane database of systematic reviews (2015)

“There is an absence of evidence to recommend the use of vitamin B therapy alone or combination for delaying progression of DKD.”

Key Findings:

There is an absence of evidence to recommend the use of vitamin B therapy alone or combination for delaying progression of DKD.
Thiamine was found to be beneficial for reduction in albuminuria in a single study; however, there was lack of any improvement in kidney function or blood pressure following the use of vitamin B preparations used alone or in combination.
These findings require further confirmation given the limitations of the small number and poor quality of the available studies.

📚meta-analysisn=364

DOI

Muley A et al. • BMJ open (2022)

“Benfotiamine reduced triglyceride level (MD, -1.10; 95% CI: -1.90 to -0.30) in 120 mg/day dose as compared with placebo 150 mg/day, however this was not demonstrated in higher doses.”

Key Findings:

There was a significant increase in high-density lipoprotein (HDL) (MD, 0.10; 95% CI: 0.10 to 0.20) at 3-month follow-up.
Benfotiamine reduced triglyceride level (MD, -1.10; 95% CI: -1.90 to -0.30) in 120 mg/day dose as compared with placebo 150 mg/day, however this was not demonstrated in higher doses.
Further research warranted to confirm findings

📚systematic-review

DOI

Raj V et al. • European review for medical and pharmacological sciences (2018)

“In the present review, we have comprehensively reviewed all the molecular targets modulated by BFT to provide mechanistic perspective to highlight its pleiotropic effects.”

Key Findings:

The reduction in AGEs subsequently decreases metabolic stress which benefits vascular complications seen in diabetes.
The effects of BFT on the AGE-dependent pathway is well established.
In the present review, we have comprehensively reviewed all the molecular targets modulated by BFT to provide mechanistic perspective to highlight its pleiotropic effects.

📚systematic-reviewn=741

DOI

Ang CD et al. • The Cochrane database of systematic reviews (2008)

“There are only limited data in randomised trials testing the efficacy of vitamin B for treating peripheral neuropathy and the evidence is insufficient to determine whether vitamin B is beneficial or harmful.”

Key Findings:

There are only limited data in randomised trials testing the efficacy of vitamin B for treating peripheral neuropathy and the evidence is insufficient to determine whether vitamin B is beneficial or harmful.
One small trial in alcoholic peripheral neuropathy reported slightly greater improvement in vibration perception threshold with oral benfotiamine for eight weeks than placebo.
In another small study, a higher dose of oral vitamin B complex for four weeks was more efficacious than a lower dose in reducing symptoms and signs.
Vitamin B administered by various routes for two to eight weeks was less efficacious than alpha-lipoic acid, cilostazol or cytidine triphosphate in short-term improvement of clinical and nerve conduction study outcomes.

📋preclinical

DOI

Hammes HP et al. • Nature Medicine (2003)