Earthborn Elements Vitamin B1 Review
This Earthborn Elements product is listed as Vitamin B1 (Thiamine Mononitrate) 200 Capsules at $15.99. The page describes thiamine mononitrate as a vital nutrient that the body does not produce. It states the product is pure and undiluted, with no additives or fillers, and is encapsulated in the USA. The page gives a 200 day supply, described as 6 months of peak health support. The product is currently out of stock, and the page offers an email notification for when stock returns. The page shows no ingredients list, barcode, or customer reviews. Related products on the page include other Earthborn Elements capsules such as Apple Cider Vinegar, Activated Charcoal, Acai Berry, Berberine, Ascorbyl Palmitate and Beet Root.
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Study, Trial or Testing Result Summary
Members Only17 human studies · 8 improved
1 of these 17 human studies gave thiamine by injection, not by mouth.
Thiamine, or vitamin B1, seems to help energy mainly in people who are low in it or who have certain long-term illnesses, and results are mixed overall. In older women with mildly low thiamine, 10 mg a day for 6 weeks lowered fatigue and improved well-being and appetite compared with placebo [1]. This product gives 525 mg a day, far above that dose. In people with inflammatory bowel disease and severe fatigue, high doses of 600 to 1800 mg a day for 4 weeks cut fatigue clearly compared with placebo [2]. A small pilot without a placebo group reported similar relief [3]. Note that 525 mg is below the 600 mg starting point of those high-dose trials. Other studies found no benefit. The same high dose did no better than placebo in people with a liver disease and severe fatigue [4]. In bowel disease, 300 mg a day for 12 weeks did not change fatigue [5]. A large trial of sulbutiamine, a related compound rather than thiamine itself, found no lasting benefit for fatigue after an infection [6]. There is no clear evidence that thiamine boosts energy in healthy people who are not low in it. Animal and cell studies are never counted.
See all 17 studies →Hide the studies
- In 326 people with long-lasting fatigue after an infection, 4 weeks of sulbutiamine (400 or 600 mg a day, a thiamine-related compound) did not reduce fatigue more than placebo overall; women on 600 mg had less fatigue at day 7 only, and it did not last.[Treatment of chronic postinfectious fatigue: randomized double-blind study of two doses of sulbutiamine (400-600 mg/day…
- In 202 hemodialysis patients, 12 weeks of a multinutrient drink that included vitamin B1 did not change fatigue or quality of life compared with placebo, though heart rate variability improved and one herpes virus measure fell.Effects of nutritional supplementation on fatigue, and autonomic and immune dysfunction in patients with end-stage renal…
- In 80 healthy elderly Irish women with marginal thiamin deficiency, 10 mg of thiamin daily for 6 weeks increased appetite, energy intake and general well-being and decreased fatigue compared with placebo.Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal t…
- In 68 people with chronic fatigue syndrome, vitamin B1 with oryzanol for 4 weeks reduced fatigue scores, but adding acupuncture worked better; the study did not test thiamine against placebo.[Acupuncture in the treatment of chronic fatigue syndrome based on "interaction of brain and kidney" in TCM: a randomize…
- In 41 trained male cyclists, 4 weeks of a combination supplement including 1.1 mg vitamin B1 did not improve aerobic or anaerobic performance or fatigue measures versus placebo, though it lowered blood lactate after hard exercise.l-Carnitine and Alpha-Lipoic Acid Fail to Improve Anaerobic and Aerobic Performance in Trained Cyclists Despite a Reduct…
- In 40 people with quiescent inflammatory bowel disease and severe fatigue, 4 weeks of high-dose thiamine (600-1800 mg a day) reduced fatigue by 4.5 points versus a 0.75-point increase on placebo, with 55% and 75% of the two groups improving on thiamine.Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflamm…
- In 36 people with primary biliary cholangitis and severe fatigue, 4 weeks of high-dose thiamine (600-1800 mg a day) was safe but not better than placebo at reducing fatigue.High-dose oral thiamine versus placebo for chronic fatigue in patients with primary biliary cholangitis: A crossover ran…
- In 32 healthy young adults, 28 days of a daily B vitamin complex including B1 increased running time to exhaustion 1.26-fold and lowered blood lactate and ammonia during exercise compared with placebo.A functional evaluation of anti-fatigue and exercise performance improvement following vitamin B complex supplementation…
- In 16 male athletes, 100 mg of thiamine daily for 3 days before cycling exercise reduced the rise in blood glucose in those with normal thiamine levels and lowered the number of fatigue complaints after exercise compared with placebo.Effects of thiamine supplementation on exercise-induced fatigue.
- In 14 people given 1 gram a day of a thiamine derivative or placebo for 4 days in a crossover design, there was no difference in oxygen uptake, lactate or 2000-metre cycling time.The effect of a thiamin derivative on exercise performance.
- In people with quiescent inflammatory bowel disease and chronic fatigue given high dose oral thiamine for 4 weeks, blood levels of other B vitamins were not linked to the fatigue response, and only lower riboflavin was seen in those reporting benefit.B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue …
- In 9 students in a crossover trial, 4 weeks of thiamine tetrahydrofurfuryl disulfide at 10 mg per kg body weight daily lowered blood lactate and ammonia during exercise and reduced perceived exertion compared with placebo.The effects of endurance training and thiamine supplementation on anti-fatigue during exercise.
- In an open-label pilot of 50 people with Parkinson disease, thiamine injections of 100 mg twice a week were followed by better motor and non-motor symptom scores over a mean follow-up of about 42 weeks, but without a placebo group.Long-Term Treatment with High-Dose Thiamine in Parkinson Disease: An Open-Label Pilot Study.
- In 26 people with multiple sclerosis, taking 400 mg of sulbutiamine (a fat-soluble form of thiamine) once daily for two months significantly reduced fatigue scores, with the benefit seen mainly in those also taking disease-modifying treatment; the study had no placebo group.Sulbutiamine shows promising results in reducing fatigue in patients with multiple sclerosis.
- In an open-label pilot of 12 people with ulcerative colitis or Crohn's disease, high-dose oral thiamine (600 to 1500 mg daily, based on body weight) led to complete fatigue relief in 10 patients and nearly complete relief in the other 2 after about 20 days.Thiamine and fatigue in inflammatory bowel diseases: an open-label pilot study.
- In patients with inflammatory bowel disease, 300 mg of thiamine daily for 12 weeks did not significantly change fatigue compared with no thiamine, and fatigue rose over the study period for both groups.Long-term maintenance treatment with 300 mg thiamine for fatigue in patients with inflammatory bowel disease: results fr…
- In a survey of 499 postpartum women in Saudi Arabia, fatigue was linked to lower physical activity, but thiamine intake was only a statistical adjustment factor and was not tested as a treatment for energy.Physical activity patterns among women during the postpartum period: an insight into the potential impact of perceived f…
Review Totals and Summary
Members Only1,700 reviews · 93% positive
I couldn't retrieve actual customer reviews for Earthborn Elements Vitamin B1, so I can't give an honest summary of the themes in them. The only rating signal I found was a 4.6 on one international retailer page (Ubuy), with no review text to read. Other listings showed no reviews, or only promotional copy. To get real feedback, read the verified-purchase reviews on the product's Amazon page and filter for critical ones. Look for comments on capsule size, whether the label dose matches what you expect, and any effects on energy or stomach comfort.
Biohacker Summary
Members Only1 of 10 recommend it
Our biohacker panel has not discussed this product’s ingredients yet.
RAL Summary
Members OnlyTier 4 for Energy
The tier of 5 says good studies show thiamine does not work, but the studies are evenly split (8 improved, 8 no effect), with two placebo-controlled trials showing less fatigue, so they disagree rather than show it fails. So it is graded Tier 4, as the studies disagree.
- Emerging: not enough evidence to rank higher yet.
Where the evidence disagrees: 8 of the 17 human studies found no effect.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Nervous system, Metabolic system, Digestive system
Combine with: Thiamine works best alongside other B vitamins such as B2, B3, B5, B6, B12 and folate in a B-complex, since they cooperate in energy metabolism. Magnesium is also a cofactor for thiamine-dependent enzymes, so it pairs well, and alpha-lipoic acid can complement thiamine for nerve and metabolic support. For the heartburn goal itself, consider a separate product with calcium carbonate, magnesium hydroxide, or sodium alginate for fast relief, or DGL licorice and zinc-carnosine for longer-term mucosal support. Check with a healthcare provider if heartburn is frequent or persistent.
Possible side effects: High-dose thiamine at 600 to 1800 mg a day was reported as safe in a 4-week trial. No major side effects reported.
Supplement Facts
Thiamine Mononitrate 525 mg
| Thiamine Mononitrate | 525 mg | † |
Other ingredients: Gelatin.
Directions: Suggested use: As a dietary supplement, take 1 capsule daily, preferably with meals. Take with at least 8 oz of liquid.
Label source: NIH label database · Report a label change
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Graded November 7, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.
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