Supplement Facts
Serving Size:  1 Tablet
Amount Per Serving
%DV
Thiamin(from Thiamin HCl) (Vitamin B-1)
100 mg
8,333%

The product is found useful for the following medical conditions

Neuropathy details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 11 Reviews
8.8
10
Burning pain relief
Most Useful Review
56 people found this helpful
After 15 years of burning pain in my legs post-gastric bypass surgery, I found this product after learning about a B vitamin deficiency's role in neuropathy. It has provided relief greater than any opioids or pain medication I've tried; this has truly been a lifesaver for me.

Sleep Apnea details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 27 Reviews
8.7
10
Life-saving effects
Most Useful Review
177 people found this helpful
This has likely saved my life! Take "Nervous System Health" seriously, especially regarding B-1 deficiency which can cause dysautonomia. I'm using NOW Vitamin B1 to manage sleep apnea effectively. Since starting, I'm experiencing significant improvements; no more waking up gasping for breath or unusual diaphragm flutters during sleep! These have become essential for my well-being.

Athlete’s Foot details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.6
9
B1 deficiency relief
Most Useful Review
I was experiencing pain in the soles of my feet, which has greatly diminished. This pain was due to a B1 deficiency. The quality is good; I would recommend it.

Migraine details

SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.7
USERS' SCORE
Good
Based on 4 Reviews
8.6
We looked into how Vitamin B2 supplementation might help with migraines, focusing on its potential to reduce the number of migraine days, duration, frequency, and pain scores.

Using systematic reviews and meta-analyses, we explored data from multiple reliable databases. Our findings reveal that taking 400 mg of Vitamin B2 daily for three months can significantly cut down on migraine days, duration, frequency, and pain levels.

So, if you're seeking alternatives to pharmaceuticals, Vitamin B2 could be a beneficial option to consider.
9
Boosts energy and mood
Most Useful Review
46 people found this helpful
This is my favourite vitamin. It alleviates migraines, boosts energy, and ensures a good night's sleep. I've been taking B1 for nearly a year, helping to relieve fatigue and weakness from stress. I take it regularly, even instead of coffee, to combat migraines, especially after stressful days.

Weight Loss details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.6
9
Effective weight loss
Most Useful Review
30 people found this helpful
B1 is my staple purchase on iHerb. It truly saves me from late-night cravings. I take one tablet in the morning and forget about food in the evening, as long as I have a hearty breakfast and lunch. B1 aids my intermittent fasting, weight loss, and helps combat insulin and leptin resistance, not to mention liver support. Thanks to this vitamin, I've lost 30 kg while following a 6-8 hour eating window, having meals twice a day. I try to take benfotiamine, a better-absorbed form of thiamine, though it’s not always available, and regular thiamine works too.

Fibromyalgia details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 4 Reviews
8.5
9
Restored energy
Most Useful Review
4 people found this helpful
Extreme fatigue and lack of energy are key symptoms of fibromyalgia, which I've lived with for five years. Taking B1 (thiamine) supplements at 600mg to 800mg daily has restored my lost energy. Being affordable allows me to purchase other essential supplements to function daily. 😊

Hair Loss details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.5
9
Health improvements noted
Most Useful Review
10 people found this helpful
I took a course of vitamin B1 and noticed various improvements: my hair loss decreased, my nails became stronger, I experienced fewer headaches, the constant numbness in my hands ceased, and morning leg cramps stopped. My energy levels increased, and overall, my health improved. I believe the drug is effective and well-absorbed, with no allergic reactions or side effects. I am completely satisfied. If this information was helpful, please give a thumbs up!

Knee Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.5
9
Wrist pain relief
Most Useful Review
4 people found this helpful
Great for pain! This is a reasonable price for a product that works wonders for pain, particularly in my wrist. After spraining it, I experienced discomfort for years, but since taking this product for a few months, I haven't faced any wrist pain.

Premenstrual Syndrome details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 5 Reviews
8.5
9
Soothing effects
Most Useful Review
8 people found this helpful
Thiamine perfectly calms nerves, especially during PMS. I take it alongside standard vitamins and cease when the tension subsides—this has been my routine each month.

Allergies details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.4
9
Improved metabolism
Most Useful Review
Superb quality! The ingredients are excellently selected, with no allergies or adverse effects experienced. The package is substantial and lasts a long time. Improvements in metabolism and nervous system function were felt within a week.

Celiac details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.4
9
Quick symptom relief
Most Useful Review
I truly needed this! My trigger finger improved remarkably fast after hearing a British nutritionist discuss B1's benefits for the condition, which I was experiencing. It worked astonishingly quickly. I suspect my deficiency is due to avoiding bread. This is a fantastic supplement for anyone gluten-free, as it helps prevent your hands from curling up and becoming unusable!

Indigestion details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 4 Reviews
8.4
10
Improved digestion
Most Useful Review
5 people found this helpful
I recently began taking Vitamin B1 supplements for their benefits on digestion and energy production, and I'm delighted with the results. The supplement is straightforward to take and has noticeably boosted my digestion and energy levels. I feel more energised throughout the day, even after consuming a large meal. My digestion has improved significantly; I no longer experience bloating or indigestion. Additionally, Vitamin B1 aids in metabolism. Overall, I wholeheartedly recommend this supplement!

Rash details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.4
7.5
Rash improvement noted
Most Useful Review
25 people found this helpful
B1 or thiamine is a vitamin that needs to be consumed daily with food, which can be challenging. During my treatment for psoriasis, I was prescribed a course of injections containing thiamine. I decided to give these vitamins a try. The results have been notable, particularly on my hands, where the rashes have started to fade after six years of battling this condition. I also used a cream for better effect. Additionally, I ordered Omega3 supplements from a website, as I wondered if there might be a beneficial interaction. I hope my feedback is helpful to someone.

Adrenal Gland Disorder details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 8 Reviews
8.3
9
Supports health
Most Useful Review
2 people found this helpful
I require vitamin B1 to support my adrenal glands, along with pantothenic acid, and it works!

Autoimmune Disorder details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 8 Reviews
8.3
9
Improved sleep quality
Most Useful Review
96 people found this helpful
I ordered this medication for my brother, who has heart issues and irritability. The doctor recommended it as part of his treatment protocol. After a while, he began to show noticeable improvements—his sleep quality enhanced, and he became less irritable. I highly recommend this to anyone struggling with energy production, tissue health, sleep, and the nervous system.

Back Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.3
9
Foot pain reduced
Most Useful Review
I experienced pain in the bottom of my feet, which has almost disappeared, likely due to a B1 deficiency. The quality is good, and I highly recommend it.

Blurred Vision details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 4 Reviews
8.3
9
Effective treatment
Most Useful Review
1 people found this helpful
My eyes used to experience jagged flashes and blurred vision. Despite consultations with an ophthalmologist and cardiologist, the cause was unclear. Since using this product, those issues have not recurred. This has been the most effective experience I've had with various vitamins.

Bone Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 15 Reviews
8.3
9
Nerve pain management
Most Useful Review
2 people found this helpful
This vitamin is remarkable for alleviating tingling, numbness, and limb pain.

Chest Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.3
7
Stiff shoulders relief
Most Useful Review
10 people found this helpful
It effectively alleviates stiff shoulders and muscle pain associated with remote work. After prolonged working hours during the pandemic, I suffered from stiffness. Taking one tablet of Now B1 before bed left me feeling refreshed by morning. This supplement is superior to over-the-counter alternatives and has no unnecessary ingredients. I train in martial arts thrice a week, and after using it, my usual hamstring discomfort lessens, allowing me to enjoy playing in the park with my children.

Chronic Cough details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 4 Reviews
8.3
9
Restored energy
Most Useful Review
9 people found this helpful
I am delighted Vitamin B1 has saved me from chronic fatigue. After months of taking glycine, GABA, and magnesium B6 with no major changes, I felt reborn from the first day of B1. The results exceeded my expectations; my nervous system functioned like when I was in school. I experienced a rush of blood to my brain and energy throughout my body. I no longer need coffee! The quality of the vitamin is excellent, with compact packaging, standard-sized tablets, and neutral taste. As someone who is insulin resistant, B1 has proven to be pivotal for my wellness. I heartily recommend it!

Swollen Lymph Nodes details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.3
9
Decreased fluid retention
Most Useful Review
1 people found this helpful
I heard from Dr. Berg about its effectiveness in reducing swelling in the feet. After I completed the second package, I was relieved to find that fluid retention and edema had decreased significantly.

Anxiety details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 49 Reviews
8.2
10
Freedom from anxiety
Most Useful Review
52 people found this helpful
Saved my life. A simple B vitamin cured my 10-year-long debilitating GI issues. I had symptoms that made daily living torturous, accompanied by intense anxiety about normal activities. Thankfully, a simple B1 eliminated my gut pain and the fight-or-flight anxiety that kept me homebound. I have my life back again.

Common Cold details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 4 Reviews
8.2
9
Trustworthy immunity boost
Most Useful Review
This big brand is reliable—it has improved my immunity and I’ve had fewer common colds. The quality is good, and the price is much cheaper than what I found at the pharmacy. I recommend it.

Heart Attack details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 14 Reviews
8.2
9
Palpitations reduced
Most Useful Review
38 people found this helpful
This product has been life-saving for me. I discovered my hypoglycemic symptoms were actually intense palpitations. After three days of taking it, symptoms weakened significantly. I believe thiamine is crucial for energy production, and continuing the intake has been essential for my heart health.

High Cholesterol details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 9 Reviews
8.2
9
Energy levels enhanced
Most Useful Review
2 people found this helpful
Vitamin B-1 has been impactful in supporting my energy production and ensuring a healthy nervous system. Since incorporating this supplement into my routine, I've seen a significant lift in my energy levels and focus, without any jitters. The quality of the product is excellent, making it a noteworthy addition to my wellness regimen.

Insomnia details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 18 Reviews
8.2
9
Eased insomnia
Most Useful Review
25 people found this helpful
Recently, I struggled with anxiety and insomnia. After trying Valerian without success, I took B1 alongside B6 and magnesium before bed. I found it easier to sleep, and my energy levels improved significantly within a few days. The capsules are a decent size and well-priced for the quality.

Irritable Bowel Syndrome details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.2
7.5
Effective treatment
Most Useful Review
1 people found this helpful
I found this product beneficial for my irritable bowel syndrome. I take one tablet before breakfast on an empty stomach, dissolving it in water.

Liver Disease details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.2
9
Weight loss aid
Most Useful Review
30 people found this helpful
Vitamin B1 is my go-to for curbing evening hunger. I take one tablet in the morning and hardly think about food at night, provided I have a hearty breakfast and lunch. It has been instrumental in my intermittent fasting journey, helping me lose 30 kg. I prefer benfotiamine, as it’s better absorbed, but regular thiamine effectively supports my weight loss and reduces cravings, especially relevant for my liver disease.

Menopause details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 6 Reviews
8.2
9
Headaches resolved
Most Useful Review
11 people found this helpful
Headaches no longer trouble me. Since entering menopause, I experienced nearly constant headaches and frequent migraines. However, since taking this alongside Magnesium Glycinate and B2, my headaches are nearly a thing of the past. I've regained my life! Thank you, iHerb!

Mild Cognitive Impairment details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 5 Reviews
8.2
9
Memory improvement noted
Most Useful Review
4 people found this helpful
The doctor advised taking B1 for elders with dementia. After just one week, I noticed an improvement in memory and overall condition. I would highly recommend it for alleviating dementia symptoms.

Cold details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.1
9
Boosts immunity
Most Useful Review
quality product! For immunity, it is excellent, especially during the cold season!

Constipation details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 13 Reviews
8.1
7.5
Effective for constipation.
Most Useful Review
1 people found this helpful
The best aspect of this B1 product is its natural form, requiring no enzymes for absorption. It’s advisable to take it on alternating days, ensuring quality and good ingredients. It effectively helps reduce constipation and boosts metabolism without any taste.

Diabetes details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 15 Reviews
8.1
9
Pain management success
Most Useful Review
54 people found this helpful
After 15 years with diabetes and no prescription medications, I find particular supplements, including biotin and niacinamide, helpful for nerve repair and pain management. Topical creams also play a crucial role.

Food Poisoning details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 8 Reviews
8.1
9
Nerve pain relief
Most Useful Review
12 people found this helpful
B1 vitamin - thiamine helps the body turn food into energy. After being very low in it, I began taking it regularly for almost 2 months along with another B complex mix. My energy has dramatically increased, and it has helped improve my facial nerve pain - Trigeminal Neuralgia - and reduced my need for painkillers. My anxiety attacks disappeared in two weeks, and my sleep has improved, allowing me to wake up refreshed. I also noticed an improvement in my memory.

Hypothyroidism details

SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8.5
USERS' SCORE
Good
Based on 12 Reviews
8.1
Our study focused on how thiamin, also known as Vitamin B1, can help with learning and memory issues caused by hypothyroidism. We designed an experiment using 50 rats, which we treated with propylthiouracil to induce hypothyroidism and then supplemented with varying doses of thiamin. Over a period of seven weeks, we assessed the rats’ abilities to remember and learn through standard tests like the Morris water maze and passive avoidance tasks.

We observed that thiamin significantly improved the ability of hypothyroid rats to recall the location of a hidden platform in the water maze. The rats that received higher doses of thiamin spent less time finding the platform and traveled shorter distances compared to those in the hypothyroid group who did not receive the supplement. Similarly, in the passive avoidance test, rats treated with thiamin demonstrated longer delays before entering a dark chamber, indicating improved memory retention.

Additionally, thiamin showed promise in reducing oxidative stress and decreasing acetylcholinesterase activity in the brain. This suggests that thiamin may help to rebalance certain chemicals in the brain, contributing to better memory function. Overall, our findings support the potential benefits of thiamin for addressing learning and memory deficits in cases of hypothyroidism, primarily by improving oxidative status and cholinergic function.
9
Eliminated fatigue
Most Useful Review
3 people found this helpful
My digestive issues have vanished, and my pancreas is functioning well. I no longer experience drowsiness or constant fatigue. All signs of hypothyroidism have disappeared. I will definitely continue with this supplement.

Cardiovascular Disease details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 18 Reviews
7.9
9
Improved cardiovascular function
Most Useful Review
1 people found this helpful
The discovery of vitamin B1 (thiamine) is closely linked with beriberi disease, which causes mental disorders and muscle wasting, potentially leading to heart failure. Thiamine enhances brain function, memory, and appetite while supporting muscle tone and cardiovascular health. Allergic reactions can occur with injections, and certain substances can hinder vitamin B1 absorption. Combining B1 with other vitamins may heighten allergy risks, while vitamin C protects it from degradation. I prefer taking vitamins separately to avoid allergies, and after a week of taking B1, I feel positive effects.

Depression details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 23 Reviews
7.9
9
Anxiety management
Most Useful Review
7 people found this helpful
This vitamin is fantastic for alleviating depression! I use it alongside other supplements to help with anxiety and panic.

Flu details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 13 Reviews
7.9
7.5
Excellent health benefits
Most Useful Review
11 people found this helpful
Honestly, it's very, very excellent. I took it for reflux esophagus, as recommended by Dr. Berg and Karim Ali. After using it, I noticed my symptoms lessened, and the fatigue I was feeling vanished. The quality is excellent, with organic ingredients in plentiful supply for three months. The folic acid works well and responds nicely to the influx of niacin. The packaging is sealed, and the product's effects were noticeable from the first day. It's also crucial for the nervous system and metabolism, with a taste typical of B vitamins. It's excellent for anyone.

Chronic Fatigue Syndrome details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 53 Reviews
7.8
9
Relief from fatigue
Most Useful Review
46 people found this helpful
I've been taking vitamin B1 for almost a year, and it alleviates migraines, fatigue, and stress. I find it essential for maintaining my mental well-being and energy levels.

Leg Cramps details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 17 Reviews
7.8
9
Numbness disappeared
Most Useful Review
15 people found this helpful
I like it. After being diagnosed with diabetes, Dr. Fujikawa recommended I take Vitamin B1 alongside B Complex. My physical condition improved significantly, and the numbness in my left leg, which I was concerned about, has vanished. I intend to continue this supplementation.

Headache details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 17 Reviews
7.7
9
Indispensable treatment
Most Useful Review
14 people found this helpful
Indispensable for a better life! If you suffer from migraines or headaches, or if stress has taken a toll, you need thiamine. It works within 10 minutes of ingestion, regardless of absorption issues. This B1 is the best remedy I've found recently, and I intend to continue using it regularly. I highly recommend it for living pain-free!

Nausea details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 2 Reviews
7.5
6
Mild nausea
Most Useful Review
Better to drink with food; it may cause mild nausea.

Heart Disease details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 34 Reviews
7.4
7.5
Improved sleep quality
Most Useful Review
139 people found this helpful
If you're tired and struggling with sleep, you may have a deficiency in vitamin B1. I've noticed that after starting thiamine, my sleep improved and I became less irritable. I'm convinced it positively affects heart disease as well.

Acne details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Medium or Average
Based on 9 Reviews
6.7
9
Improved skin quality
Most Useful Review
2 people found this helpful
It might not work for everyone, but I've struggled with adult acne for years. I started taking Vitamin A on a whim and noticed an improvement. While it takes time, this really helped enhance my skin quality and reduce my acne. Highly recommend!
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