NOW Vitamin B-1 (Thiamine) 100mg, 100 Tablets (Pack of 4)

Key Benefits of Thiamine

Thiamine contributes to normal energy-yielding metabolism, helping your body convert food into usable energy. This is particularly beneficial during periods of increased physical activity or mental demand. Additionally, thiamine supports the normal function of the nervous system, promoting healthy nerve signalling and cognitive performance.

As thiamine is water-soluble, the body does not store it in large amounts, so regular intake from diet or supplementation is important. NOW Vitamin B-1 provides 100 mg of thiamine (as thiamine HCl) per tablet, and the 4-pack offers a total of 400 tablets for long-term use. This product is free from sugar, soy and milk, making it suitable for many dietary preferences.

Recommended Dosage and Usage

As a food supplement, take 1 tablet daily with a meal. One tablet provides 100 mg of thiamine. Do not exceed the recommended dose unless advised by a health care professional. Since thiamine is water-soluble, excess amounts are generally excreted. However, always consult a health care professional before starting any new supplement, particularly if you are pregnant, nursing or have a medical condition.

NOW Foods is a trusted brand known for quality and third-party testing. Their supplements are manufactured in GMP-certified facilities.

Who Should Consider a Thiamine Supplement?

Although a balanced diet provides thiamine (found in whole grains, pork, fish and legumes), certain populations may benefit from supplementation. Older adults, individuals who consume alcohol regularly, people with digestive conditions (such as Crohn’s or ulcerative colitis), and those following a vegan or vegetarian diet may have higher requirements or reduced absorption. Athletes and active individuals might also find thiamine beneficial for energy metabolism.

As with any supplement, evaluate your dietary intake and consult a health care professional to determine if thiamine supplementation is right for you.

How to Choose a Thiamine Supplement

Thiamine supplements are available in several forms. Thiamine HCl (hydrochloride) is the most common and well-absorbed form used in general supplementation. Thiamine mononitrate is also used but is slightly less hygroscopic. For those seeking targeted nerve health support, benfotiamine—a fat-soluble derivative—offers greater bioavailability for nerve tissue, whilst it is not present in this product.

Dosage is another consideration. A typical maintenance dose ranges from 25–100 mg daily. At 100 mg per tablet, NOW Vitamin B-1 offers a moderate to higher dose suitable for those with increased needs. The 4-pack provides excellent value and convenience, ensuring you don't run out.

What is Thiamine?

Thiamine, also known as vitamin B1, is a water-soluble vitamin essential for converting carbohydrates into energy. It plays a critical role in the functioning of the nervous system, muscles and heart. As a member of the B-complex family, thiamine acts as a coenzyme in metabolic processes, helping your body unlock fuel from the foods you eat. Without adequate thiamine, energy production slows and nerve function can be compromised.

Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. This product is not intended to diagnose, treat, or prevent any disease.

Frequently Asked Questions

Is 100 mg of thiamine safe?

Yes, 100 mg is within the safe range for supplementation. The tolerable upper intake level for thiamine has not been established, but high doses are generally well-tolerated. Some individuals may experience mild digestive upset. Always follow the recommended dosage.

Can I take this with other B vitamins?

Absolutely. Thiamine works synergistically with other B vitamins. However, if you take a B-complex, check the total thiamine content to avoid duplication. This product can be taken alone or as part of a broader regimen.

Is this product gluten-free?

While the label indicates it is free of sugar, soy and milk, it does not specifically state gluten-free. For gluten concerns, check the NOW Foods website or contact them directly for current allergen information.

How long does the 4-pack last?

At one tablet per day, a single bottle of 100 tablets lasts over 3 months. The 4-pack provides over a year's supply (400 tablets), making it a cost-effective option.