Proof.Fit

Vitamin B1

17 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Pain/symptoms ↓

Nerve sensation ↑

Neuropathy score ↓

2,609 people

Growth +459g, z-scores

Infection fewer/shorter

Dietary thiamine gaps

3,438 people
Metabolism
Moderate

B1 status ↑

Metabolism markers ↓

1,021 people

Fatigue ↓, endurance ↑

VO2max/lactate better

Fatigue ↓, appetite ↑

1,142 people
Vitality
Moderate

Fatigue/endurance ↑

+26% endurance

Exercise lactate/NH3 ↓

1,138 people
Blood sugar
Moderate

↓ fasting/2h glucose

↔/↑ thiamine status

813 people

Improved perfusion, lactate ↓

Better cardiac output, urine ↑

515 people
Mood balance
Moderate

Mood symptoms -32%

Depression faster -1.9

343 people
Brain health
Moderate

Better memory, cognition

MoCA +3.7; mortality -24%

300 people
Heart health
Moderate

Pump function +5.3%

Diuresis, injury↓

220 people

Cognition/function −1.9

Thiamine/oxidative status

245 people

Attention + memory

IQ subtests + recall

213 people

Stress↓ sleep↓

Dialysis↓ −18%

120 people

Corneal nerves + symptoms

Nerve length/width ↑

Neuromas ↓, OSDI ↓

199 people

Vomiting reduced, 33%→9%

Vomiting severity lowered, 33%→6%

160 people

↑ appetite, intake, weight

↓ fatigue, +10 mg/day

80 people

Muscle maintenance: HGS +0.8 kg

Muscle maintenance: gait speed +0.07 m/s

66 people