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Thiamine, or Vitamin B1, is crucial for energy production and nerve function. Ensuring you get adequate amounts through supplementation can support overall well-being, especially if dietary intake is insufficient. Choosing a high-quality B1 supplement is key to maximizing these benefits.
SUPPORTS ENERGY PRODUCTION*: Vitamin B-1, also known as thiamin, is a member of the B-vitamin family that is naturally found in cereal grains, beans, nuts, eggs, and meats
HEALTHY NERVE TISSUE*: Thiamin is involved in numerous body functions, including nervous system and muscle functioning, the flow of electrolytes in and out of nerve and muscle cells, carbohydrate metabolism, and the production of hydrochloric acid, which...
GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product...
𝗛𝗜𝗚𝗛𝗟𝗬 𝗕𝗜𝗢𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗟𝗘 𝗔𝗟𝗟𝗜𝗧𝗛𝗜𝗔𝗠𝗜𝗡𝗘 - Dr. Berg B1 Vitamin Supplement features allithiamine, a lipid-soluble form of b1 supplement derived from vegetables in the onion...
𝗣𝗢𝗧𝗘𝗡𝗧 𝗕 𝗩𝗜𝗧𝗔𝗠𝗜𝗡𝗦 - Our vitamin B1 supplement contains a comprehensive blend of vitamin b complex including Thiamine, Riboflavin, Niacin, Pantothenic acid, Pyridoxine, Biotin, Folate, and Cobalamin. This...
𝗙𝗔𝗦𝗧 & 𝗘𝗙𝗙𝗜𝗖𝗜𝗘𝗡𝗧 𝗔𝗕𝗦𝗢𝗥𝗣𝗧𝗜𝗢𝗡 - Unlike traditional thiamine, allithiamine in the Dr. Berg B Complex formula facilitates rapid absorption. This efficient delivery ensures you get the...
𝗗𝗢𝗦𝗔𝗚𝗘 & 𝗦𝗘𝗥𝗩𝗜𝗡𝗚𝗦 - Experience the benefits of this vital nutrient in a convenient and effective form with Dr. Berg B1 Multivitamin. These b vitamins for men & women have 60-capsules that provide a two-month...
Pure Thiamin: Made from Japanese benfotiamine, BenfoMax 90's is excellent for metabolism and maintains healthy advanced glycation end (AGE) product activity*
Thiamin Rich: Each capsule delivers 200 mg of benfotiamine, a key kidney supplement for kidney support and health*
Vegan Formula: These brain vitamins help support eye, vascular, retinal, kidney, and brain health*
Pure Quality: Our supplements are made with premium ingredients sourced from trusted suppliers and guided by nutritional experts, then manufactured and tested to verify potency and purity
Bioavailable vitamin B1Bioavailable vitamin B1 – Thiamine is vitamin B1. Benfotiamine is a fat-soluble form of vitamin B1, which makes it more bioavailable. Benfotiamine has been shown to support thiamine levels faster and longer than thiamine.otiamine...
Brain and heart health – Healthy thiamine levels help inhibit glycation and oxidative stress. B1 also helps maintain brain and cardiovascular health.
Science matters – Expert formulators design our supplement formulas, and a Certificate of Analysis is available for every Life Extension product.
Quality ingredients – The majority of our products are non-GMO, gluten-free and manufactured in the USA with internationally sourced ingredients.
𝗔𝗗𝗩𝗔𝗡𝗖𝗘𝗗 𝗡𝗘𝗥𝗩𝗘 𝗦𝗨𝗣𝗣𝗢𝗥𝗧: Support healthy nerve function with 300 mg of benfotiamine combined with alpha-lipoic acid, vitamin D3, magnesium, and complementary B vitamins to help nourish healthy...
𝗠𝗘𝗧𝗔𝗕𝗢𝗟𝗜𝗖 & 𝗔𝗡𝗧𝗜𝗢𝗫𝗜𝗗𝗔𝗡𝗧 𝗗𝗘𝗙𝗘𝗡𝗦𝗘: Benfotiamine supports healthy glucose metabolism, while alpha-lipoic acid works in both water- and fat-soluble environments to help support...
𝗖𝗢𝗠𝗣𝗟𝗘𝗧𝗘 𝟴-𝗜𝗡-𝟭 𝗙𝗢𝗥𝗠𝗨𝗟𝗔: Unlike basic benfotiamine supplements, this comprehensive formula combines eight carefully selected nutrients—including hydroxocobalamin (vitamin B12), methylfolate...
𝟰𝗫 𝗟𝗔𝗕-𝗧𝗘𝗦𝗧𝗘𝗗 𝗤𝗨𝗔𝗟𝗜𝗧𝗬: 4X lab tested and scientifically verified, including third-party heavy metal testing, purity verification, authenticity testing, and microbial screening. Formulated in the USA...
Last update on 2026-10-17 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Vitamin B1 (Thiamine) Supplements
Forms of Thiamine
Vitamin B1 supplements are available in several forms, with the most common being thiamine hydrochloride and thiamine mononitrate. Both are readily absorbed by the body. Some supplements also offer benfotiamine, a fat-soluble derivative that may offer enhanced absorption and bioavailability, particularly for nerve health.
Dosage and Potency
The recommended daily intake of thiamine varies by age and life stage. Supplement dosages can range from the daily value to much higher amounts. Consider your individual needs and consult with a healthcare professional to determine the appropriate potency for you. Higher doses are sometimes recommended for specific health concerns, but always under medical guidance.
Additional Ingredients
Many B1 supplements are formulated as standalone products, while others are part of a B-complex vitamin blend. B-complex supplements provide a spectrum of B vitamins, which often work synergistically. Check the ingredient list for fillers, artificial colors, or allergens if you have sensitivities. Opt for products with minimal, recognizable ingredients.
Third-Party Testing
Look for supplements that have undergone third-party testing for purity and potency. Certifications from organizations like USP, NSF International, or ConsumerLab.com indicate that the product has been verified to contain what the label claims and is free from harmful contaminants. This provides an extra layer of assurance regarding quality.
Frequently Asked Questions
What are the main benefits of Vitamin B1?
Vitamin B1 is essential for converting carbohydrates into energy that your body can use. It also plays a vital role in the proper functioning of the nervous system and muscle contraction.
Who might need a Vitamin B1 supplement?
Individuals with diets low in thiamine-rich foods, those with certain medical conditions affecting nutrient absorption, or people who consume excessive alcohol may benefit from supplementation. Pregnant and breastfeeding women also have increased needs.
What is the difference between thiamine hydrochloride and thiamine mononitrate?
Both are common, well-absorbed forms of Vitamin B1 used in supplements. Thiamine hydrochloride is slightly more acidic, while thiamine mononitrate is often preferred for its stability. For most people, the difference in absorption is negligible.
Can I take Vitamin B1 with other supplements?
Yes, Vitamin B1 is often taken as part of a B-complex supplement, which includes other B vitamins. It's generally safe to combine with most other vitamins and minerals, but it's always best to consult a healthcare provider for personalized advice.
How should I store Vitamin B1 supplements?
Store Vitamin B1 supplements in a cool, dry place away from direct sunlight and heat. Keep the container tightly closed to protect them from moisture and maintain their potency.
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