proof.fit

Thiamine

23 benefits mapped to clinical evidence across supplements.

Serves the goals:CardiovascularCognitionEnergyEssential HealthFitness

Benefit Evidence

Nerve health
Strong

Pain/sensory relief

+30 µg/L thiamine

Nerve function improved

Pain/symptoms ↓

Nerve sensation ↑

Neuropathy score ↓

3,526 people
Growth support
Strong

Growth +459g, z-scores

Infection fewer/shorter

Dietary thiamine gaps

3,438 people
Metabolism
Moderate

Thiamine status +2.6x

Glucose/insulin −11%

B1 status ↑

Metabolism markers ↓

1,027 people
Energy & Fatigue
Moderate

Energy up; fatigue down

VO2↑, lactate↓

Fatigue ↓, endurance ↑

VO2max/lactate better

Fatigue ↓, appetite ↑

1,891 people
Illness recovery
Moderate

Recovery markers + lactate/organ

Pain/function faster ~20-46%

Renal/cardiac support ↑

1,172 people
Blood circulation
Moderate

BP↓, +22% EF

Lactate↓, microcirculation↑

Improved perfusion, lactate ↓

Better cardiac output, urine ↑

1,952 people
Vitality
Moderate

Fatigue/endurance ↑

+26% endurance

Exercise lactate/NH3 ↓

1,138 people
Blood sugar
Moderate

↓ fasting/2h glucose

↔/↑ thiamine status

817 people
Focus & concentration
Moderate

Memory/attention: better

Focus scores: +3.7

EEG/recall: improved

Attention + memory

IQ subtests + recall

933 people
Mood balance
Moderate

Mood better + faster

Depression/cognition +1 MMSE

Mood symptoms -32%

Depression faster -1.9

628 people
Memory
Moderate

Memory +1.9

Memory +3.7

427 people
Mental clarity
Moderate

Memory + cognition

EEG + attention

377 people
Brain health
Moderate

Better memory, cognition

MoCA +3.7; mortality -24%

300 people
Heart health
Moderate

Heart function +3.9%

Cardiac injury -61.5%

Pump function +5.3%

Diuresis, injury↓

1,433 people
Healthy aging
Moderate

Cognition/function −1.9

Thiamine/oxidative status

245 people
Eye health
Weak

GA risk ↓

Dry-eye signs/symptoms ↑

Corneal nerves + symptoms

Nerve length/width ↑

Neuromas ↓, OSDI ↓

2,724 people
Strength
Weak

Improved nerve signs

Grip +1.2kg

150 people
Stress resilience
Weak

Stress -4.3

Sleepiness -1.2

Stress↓ sleep↓

Dialysis↓ −18%

113 people
Endurance
Weak

Endurance +11.6%

Lactate/HR improved

300 people
Digestive support
Weak

Vomiting reduced, 33%→9%

Vomiting severity lowered, 33%→6%

160 people
Appetite regulation
Weak

↑ appetite, intake, weight

↓ fatigue, +10 mg/day

80 people
Appetite stimulation
Weak

Appetite/energy/weight ↑

Fatigue ↓

80 people
Muscle maintenance
Weak

Muscle maintenance: HGS +0.8 kg

Muscle maintenance: gait speed +0.07 m/s

66 people

Similar by evidence

Supplements the same benefits carry qualifying findings for — a fact about the evidence graph, not a recommendation to swap.

Multivitamin

Shares 13 benefits: digestive support, endurance, energy & fatigue, eye health

Choline

Shares 13 benefits: brain health, digestive support, energy & fatigue, focus & concentration

Niacin

Shares 13 benefits: appetite regulation, blood circulation, blood sugar, brain health

Riboflavin

Shares 12 benefits: brain health, energy & fatigue, eye health, focus & concentration

Acetyl-L-Carnitine

Shares 12 benefits: endurance, energy & fatigue, focus & concentration, healthy aging

Ginkgo Biloba

Shares 12 benefits: blood circulation, endurance, energy & fatigue, eye health

Products with Thiamine

Search all

725 products whose verified label declares Thiamine — not every bottle that mentions it in a title.

Enfamil

Enfamil Baby Vitamins Enfamil Poly-Vi-Sol 8 Multi-Vitamins & Iron

Vitamin A 250 mcg · (from vitamin A palmitate) · Vitamin C 50 mg +14 more

$8.68Children's Vitamins

Cheers

Cheers Restore

Vitamin C (as ascorbic acid) · Vitamin E (as dl-alpha tocopheryl acetate) · Thiamin (vitamin B1) (as thiamin HCI) +8 more

$34.99Milk Thistle

Cheers

Cheers Protect

Vitamin C (as ascorbic acid) · Vitamin E (as d-alpha tocopheryl succinate) 3 mg · Thiamin (vitamin B1) (as thiamin HCI) +8 more

$29.99Milk Thistle

Stonehenge Health

Stonehenge Health Dynamic Brain

Vitamin A 180 mcg RAE · Vitamin C 90 mg · Vitamin D3 4 mcg +38 more

$58.00Bacopa Monnieri

NOW Foods

NOW Foods Supplements, Vitamin B-100, Energy Production*, Nervous

Thiamine 100 mg · Riboflavin 100 mg · Niacin 100 mg +8 more

$13.02Diet & Sports Nutrition

Floradix

Floradix Iron & Herbs, Herbal Supplement for Men and Women, 16.9 fl oz

Thiamine 2.25 mg · Riboflavin 3.6 mg · Vitamin B6 1.8 mg +13 more

$40.99Iron

Being studied right now

Recruiting clinical trials registered on ClinicalTrials.gov. A trial in progress has no result yet — this is what the field is asking, not what it found.

Impact of a Novel Functional Snack on Perimenopausal Symptoms and Well-beingThiamine · Perimenopause, Perimenopause-Related Depression, Mood · 20 participants planned · ClinicalTrials.govRecruitingClinical Trial On The Effect Of Artisterol On Risk Factors In Individuals With Suboptimal Cholesterol LevelsThiamine · Hyperlipoproteinemia · 106 participants planned · ClinicalTrials.govRecruitingInvestigation of the Efficacy of a Probiotic Mixture in Moderate Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD): A Mechanistic TrialThiamine · MASLD - Metabolic Dysfunction-Associated Steatotic Liver Disease, Fatty Liver Disease, Nonalcoholic, Overweight (BMI > 25) · 60 participants planned · ClinicalTrials.govRecruiting