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Benefits of Vitamin B1 (Thiamine)

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Evidence-Based Benefits

  • Energy metabolism — thiamine pyrophosphate is a required cofactor for pyruvate dehydrogenase and alpha-ketoglutarate dehydrogenase, linking glycolysis to the citric acid cycle; without B1, cells cannot efficiently produce ATP from glucose
  • Nervous system support — thiamine is essential for myelin sheath maintenance and acetylcholine synthesis; deficiency causes peripheral neuropathy, cognitive impairment, and in severe cases Wernicke encephalopathy
  • Diabetic neuropathy — a 2008 RCT found benfotiamine at 300 mg/day significantly improved neuropathy symptom scores in diabetic patients over 6 weeks compared to placebo
  • Cardiovascular health — thiamine is critical for cardiac muscle energy production; deficiency causes wet beriberi with heart failure, and supplementation improves cardiac function in heart failure patients with low thiamine status

What the Research Says

Thiamine's role in metabolism and neurological function is well-established. Stracke et al. (2008) demonstrated in an RCT that benfotiamine at 300 mg/day significantly improved neuropathy symptom scores in type 1 and type 2 diabetic patients. A 2013 systematic review by Whitfield et al. found that thiamine deficiency is underdiagnosed in developed countries, particularly among alcoholics (up to 80% prevalence), elderly in institutions, and patients with heart failure. Schoenenberger et al. (2012) showed that thiamine supplementation improved left ventricular ejection fraction in heart failure patients with thiamine deficiency.

Related Conditions

EnergyBrain Fog
Full Vitamin B1 (Thiamine) Guide

References

  1. (). Benfotiamine in diabetic polyneuropathy (BENDIP): results of a randomised, double blind, placebo-controlled clinical study. Experimental and Clinical Endocrinology & Diabetes. DOI
  2. (). Thiamine deficiency disorders: diagnosis, prevalence, and a roadmap for global control programs. Annals of the New York Academy of Sciences. DOI
  3. (). Thiamine supplementation in symptomatic chronic heart failure: a randomized, double-blind, placebo-controlled, cross-over pilot study. Clinical Research in Cardiology. DOI