--- product_id: 682397230 title: "Doctor's Best Benfotiamine 300mg Supplement - Bioavailable Vitamin B1 for Men & Women, Benfotiamine B1 Capsules, Supports Nerve & Metabolic Health, Antioxidant Support, Non GMO, Vegan - 60 Veggie Caps" brand: "doctor's best" price: "$41.77" currency: USD in_stock: true reviews_count: 13 category: "Doctor's Best" url: https://www.desertcart.us/products/682397230-doctors-best-benfotiamine-300mg-supplement-bioavailable-vitamin-b1-for-men store_origin: US region: United States of America --- # High bioavailability for max absorption Vegan & Non-GMO purity 300mg potent dose Doctor's Best Benfotiamine 300mg Supplement - Bioavailable Vitamin B1 for Men & Women, Benfotiamine B1 Capsules, Supports Nerve & Metabolic Health, Antioxidant Support, Non GMO, Vegan - 60 Veggie Caps **Brand:** doctor's best **Price:** $41.77 **Availability:** ✅ In Stock ## Summary > 💡 Unlock your brain’s full potential with every capsule! ## Quick Answers - **What is this?** Doctor's Best Benfotiamine 300mg Supplement - Bioavailable Vitamin B1 for Men & Women, Benfotiamine B1 Capsules, Supports Nerve & Metabolic Health, Antioxidant Support, Non GMO, Vegan - 60 Veggie Caps by doctor's best - **How much does it cost?** $41.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/682397230-doctors-best-benfotiamine-300mg-supplement-bioavailable-vitamin-b1-for-men) ## Best For - doctor's best enthusiasts ## Why This Product - Trusted doctor's best brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power-Packed 300mg Dose:** Maximize your metabolic energy with a clinically effective benfotiamine strength. - • **Clean & Conscious Choice:** Non-GMO, vegan, gluten & soy free—perfect for mindful wellness warriors. - • **Metabolic & Nerve Support:** Supports healthy glucose metabolism and nerve function for all-day vitality. - • **Ultra-Bioavailable Formula:** Fat-soluble B1 derivative ensures superior absorption and cellular uptake. - • **Trusted Science-Backed Brand:** 35+ years of rigorous research and quality assurance from Doctor’s Best. ## Overview Doctor's Best Benfotiamine 300mg delivers a highly bioavailable, fat-soluble form of Vitamin B1 designed to support metabolic health, nerve function, and antioxidant defenses. Each vegan, non-GMO veggie capsule provides a potent dose that enhances glucose metabolism and cellular energy production, backed by over 35 years of scientific research and quality assurance. ## Description Benfotiamine raises the blood level of thiamine pyrophosphate (TPP), the biologically active co-enzyme of thiamine. Thiamine and its co-enzyme, TPP thiamine (vitamin B1) plays an essential part in the metabolism of glucose, through actions of it co-enzyme TPP (thiamine pyrophosphate). TPP is formed by the enzymatically catalyzed addition of two phosphate groups donated by ATP to thiamine. TPP also goes by the name thiamine diphosphate. In the cytoplasm of the cell, glucose, a 6-carbon sugar, is metabolized to pyruvic acid, which is converted into acetyl-CoA, otherwise known as active acetate. Acetyl CoA enters the mitochondrion, where it serves as the starting substrate in the Kreb's cycle citric acid cycle. The Krebs cycle is the primary source of cellular metabolic energy. TPP, along with other co-enzymes, is essential for the removal of CO2 from pyruvic acid, which in turn is a key step in the conversion of pyruvic acid to acetyl CoA. CO2 removal from pyruvic acid is called oxidative decarboxylation and for this reason, TPP was originally referred to as cocarboxylase. TPP is thus vital to the cell's energy supply. Benfotiamine helps maintain healthy cells in the presence of blood glucose. Acting as a biochemical super-thiamin, it does this through several different cellular mechanisms, as discussed below. Benfotiamine and glucose metabolism benfotiamine normalizes cellular processes fueled by glucose metabolites. As long as glucose remains at normal levels, excess glucose metabolites do not accumulate within the cell. The bulk of the cell's glucose supply is converted to pyruvic acid, which serves as substrate for production of acetyl CoA, the primary fuel for the krebs cycle. Of the total amount of metabolic energy (in the form of ATP) released from food, the Krebs cycle generates about 90 percent. Review: A Life-Changing Supplement for Brain-fog, Derealization, Mold, Lyme and Co-infections - Picture this: It’s February 2024, I’m shuffling around my kitchen like a character in a zombie movie. My brain fog is so thick I can’t even spell “fog,” derealization has me convinced I’m in a bad dream, and I’m tripping over thin air like I’m auditioning for slapstick comedy. Welcome to my life with dry beriberi—something I didn’t even know I had until Doctor’s Best Benfotiamine 300 mg accidentally changed everything. Let me set the scene: I’ve been managing MCAS, CIRS, and an alphabet soup of other health issues for years. I had a decent supplement routine with a B-Complex and one lonely capsule of benfotiamine per day. It wasn’t doing much, but I figured, “Eh, it’s fine.” Spoiler: It wasn’t. One fateful day, in a haze of brain fog so intense it should’ve had its own weather advisory, I reached for my usual 9 HCl Betaine and instead popped 9 benfotiamine capsules. Yes, nine. Cue immediate panic and failed attempt at induced vomiting followed by an emergency Google search: “Can I overdose on thiamine?” Turns out, no, you can’t. But what you can do is accidentally flip the switch on your nervous system and turn your life around. Within hours, the lights came back on. The derealization that had made me feel like I was living in a Salvador Dalí painting—gone. My brain fog lifted, my words stopped slurring, and I wasn’t stumbling around like I had a permanent case of the wobbles. It was like my nervous system took a deep breath and said, “Finally, you figured it out.” Why I Love This Product (and You Might Too): Immediate Results: That accidental high dose was like a thiamine-powered reboot for my brain and body. Since then, I’ve settled on 2–5 capsules a day, and the results have been consistent and life-changing. Tripping over my own feet used to be my daily reality. Now? Not even a guest star in my life--though the tingling almost never stops. Maybe one day; a gal can dream... Thiamine Deficiency Awareness: Look, Western medicine is sleeping on this one. My neurologist told me, “You don’t have beriberi—you’d be catatonic.” As if there's no path to becoming catatonic. Well, Doc, I’m not catatonic, but I was a mess until I started taking this. Pro tip: Research thiamine deficiency (check out Elliot Overton’s work) and be your own health advocate. Pro Tips for Maximum Effectiveness: Benfotiamine works best with some friends—co-factors like magnesium, riboflavin (B2), vitamin B6, niacin (B3), selenium, molybdenum, biotin, zinc, and iodine. If you want the full story (delivered in a soothing, ASMR-style narration), check out my video Thiamine Girl Summer: https://youtu.be/yT40nUOj89s?si=xC_NBedQO1BITgDA Final Thoughts: Doctor’s Best Benfotiamine 300 mg isn’t just a supplement—it’s my knight in shining armor (I've tried other brands but feel this one the most (I have no idea why)). While I don’t recommend starting with nine capsules, I'm so glad I did. This product has been a total game-changer for me. It might just be the key to your brain fog, neuropathy, or fatigue mystery too. Do yourself a favor: grab a bottle, pair it with the co-factors, and maybe join the Thiamine Girl Summer revolution. Review: Good product, reasonable priced - This product was recommended on YouTube by Dr. Berg. It was a good company and the price is reasonable things that he usually sells off his YouTube video cost a little more but for the most part you get the gist of what you need to buy this is a really good company ## Features - BENFOTIAMINE CAPSULES: Benfotiamine is a fat soluble, highly bioavailable derivative of thiamine (Vitamin B1). Benfotiamine is more bioavailable and allows for higher absorption at increased doses - METABOLIC HEALTH SUPPORT: Benfotiamine helps support healthy metabolism by aiding enzyme function and nutrient utilization for overall cellular wellness - SUPPORTS ANTIOXIDANT FUNCTION: This formula supports antioxidant defenses in the body, helping protect cells from oxidative stress and contributing to long-term health and vitality - 300MG PER SERVING: Our Benfotiamine supplement comes in veggie capsule form with 300 mg per serving. It is gluten free, soy free, vegan/vegetarian, and non-GMO for proven quality that you can trust - DOCTOR'S BEST: Good nutrition starts with sound science. For over 35 years, we have been dedicated to providing only thoroughly researched, rigorously tested, and clinically-approved supplements ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006HW5J9C | | Age Range Description | Adult | | Allergen Information | Gluten Free, Soy Free | | Best Sellers Rank | #10,848 in Health & Household ( See Top 100 in Health & Household ) #10 in Vitamin B1 (Thiamine) Supplements #1,071 in Sales & Deals #1,082 in Diet & Sports Nutrition | | Brand | Doctor's BEST | | Brand Name | Doctor's BEST | | Color | N/Q | | Container Type | Bottle | | Customer Reviews | 4.6 out of 5 stars 6,891 Reviews | | Diet Type | Vegan | | Dosage Form | 1-500 | | Flavor | Unflavored | | Global Trade Identification Number | 00753950002708 | | Item Dimensions | 2.13 x 2.13 x 3.75 inches | | Item Form | Veggie Cap | | Item Weight | 1.92 ounces | | Manufacturer | Doctor’s Best, Inc | | Manufacturer Part Number | DRB-00270 | | Material Features | GMO Free, Gluten Free, Vegan | | Model Name | Benfotiamine, Non-GMO, Vegan, Gluten Free, Soy Free, Helps Maintain Blood Sugar Levels | | Model Number | DRB-00270 | | Number of Items | 1 | | Primary Supplement Type | Vitamin B1 | | Product Benefits | Metabolism Management | | Special Ingredients | Non-GMO, Gluten Free, Soy Free | | Specific Uses For Product | Metabolism | | Total Servings Per Container | 60 | | UPC | 753950002708 | | Unit Count | 60 Count | ## Product Details - **Brand:** Doctor's BEST - **Diet Type:** Vegan - **Flavor:** Unflavored - **Item Form:** Veggie Cap - **Item Weight:** 0.12 Pounds - **Item dimensions L x W x H:** 2.13 x 2.13 x 3.75 inches - **Primary Supplement Type:** Vitamin B1 - **Product Benefits:** Metabolism Management - **Special Ingredients:** Non-GMO, Gluten Free, Soy Free - **Unit Count:** 60 Count ## Images ![Doctor's Best Benfotiamine 300mg Supplement - Bioavailable Vitamin B1 for Men & Women, Benfotiamine B1 Capsules, Supports Nerve & Metabolic Health, Antioxidant Support, Non GMO, Vegan - 60 Veggie Caps - Image 1](https://m.media-amazon.com/images/I/61w-lDmQ5jL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: what is other ingredient with L- is it safe with other meds like maoi** A: OK first of all Leucine is added to the Benfotiamine because it is one of the three branched chain amino acids (BCAAs) that is unique in its ability to stimulate skeletal muscle protein synthesis. In fact, leucine has about a 10 fold greater impact on protein synthesis than any other amino acid! L-Leucine is like adding a turbo charger to you automobile to make it run more efficiently. Benfotiamine is a special type B vitamin that has been shown to prevent the accumulation of dangerous compounds that lead to diabetic neuropathy, the pain and cramps in the feet and legs that some diabetics have, and that's why I take it, and it works for me. After going to doctors for three years, and them telling me to just take aspirin for the pain and discomfort I decided to research my neuropathy myself, and through research in Germany I found they have been treating neurophathy successfully for decades with Benfotiamine with L-Leucine. This product can be taken on an empty stomach twice a day with any other medication because it has a different pathway in the body and will not interfere with other medications. I hope that helps you out my friend. **Q: Has anyone with MS had any success with this vitamin treating their peripheral neuropathy?** A: I don't have MS but MG (Myasthenia Gravis) an auto-immune/muscular dystrophy (with peripheral neuropathy) and benfotiamine helps tremendously. On really bad flare-up days, it doesn't take away all the pain, but every little bit helps. **Q: Why does it have Leucine in it?** A: According to the label:L-Leucine, 40mg per 300mg dose. **Q: Is this sourced from or made in China** A: Not sure where the raw materials are sourced. However, if like most other supplements, OTC medicines and prescription drug raw materials they are likely sourced from China. It's estimated that 80-90% of raw materials for drugs, etc are sourced from China regardless of where they are ultimately manufactured. China has made it a priority to become the drug material supplier to the world and have been quite successful in accomplishing their goal. Sorry I cannot answer your question precisely. You would need to contact the manufacturer and then you can only hope that they even know where the ingredients are sourced. Most only know they obtain their materials from a 'supplier' in the USA. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A Life-Changing Supplement for Brain-fog, Derealization, Mold, Lyme and Co-infections *by A***E on December 29, 2024* Picture this: It’s February 2024, I’m shuffling around my kitchen like a character in a zombie movie. My brain fog is so thick I can’t even spell “fog,” derealization has me convinced I’m in a bad dream, and I’m tripping over thin air like I’m auditioning for slapstick comedy. Welcome to my life with dry beriberi—something I didn’t even know I had until Doctor’s Best Benfotiamine 300 mg accidentally changed everything. Let me set the scene: I’ve been managing MCAS, CIRS, and an alphabet soup of other health issues for years. I had a decent supplement routine with a B-Complex and one lonely capsule of benfotiamine per day. It wasn’t doing much, but I figured, “Eh, it’s fine.” Spoiler: It wasn’t. One fateful day, in a haze of brain fog so intense it should’ve had its own weather advisory, I reached for my usual 9 HCl Betaine and instead popped 9 benfotiamine capsules. Yes, nine. Cue immediate panic and failed attempt at induced vomiting followed by an emergency Google search: “Can I overdose on thiamine?” Turns out, no, you can’t. But what you can do is accidentally flip the switch on your nervous system and turn your life around. Within hours, the lights came back on. The derealization that had made me feel like I was living in a Salvador Dalí painting—gone. My brain fog lifted, my words stopped slurring, and I wasn’t stumbling around like I had a permanent case of the wobbles. It was like my nervous system took a deep breath and said, “Finally, you figured it out.” Why I Love This Product (and You Might Too): Immediate Results: That accidental high dose was like a thiamine-powered reboot for my brain and body. Since then, I’ve settled on 2–5 capsules a day, and the results have been consistent and life-changing. Tripping over my own feet used to be my daily reality. Now? Not even a guest star in my life--though the tingling almost never stops. Maybe one day; a gal can dream... Thiamine Deficiency Awareness: Look, Western medicine is sleeping on this one. My neurologist told me, “You don’t have beriberi—you’d be catatonic.” As if there's no path to becoming catatonic. Well, Doc, I’m not catatonic, but I was a mess until I started taking this. Pro tip: Research thiamine deficiency (check out Elliot Overton’s work) and be your own health advocate. Pro Tips for Maximum Effectiveness: Benfotiamine works best with some friends—co-factors like magnesium, riboflavin (B2), vitamin B6, niacin (B3), selenium, molybdenum, biotin, zinc, and iodine. If you want the full story (delivered in a soothing, ASMR-style narration), check out my video Thiamine Girl Summer: https://youtu.be/yT40nUOj89s?si=xC_NBedQO1BITgDA Final Thoughts: Doctor’s Best Benfotiamine 300 mg isn’t just a supplement—it’s my knight in shining armor (I've tried other brands but feel this one the most (I have no idea why)). While I don’t recommend starting with nine capsules, I'm so glad I did. This product has been a total game-changer for me. It might just be the key to your brain fog, neuropathy, or fatigue mystery too. Do yourself a favor: grab a bottle, pair it with the co-factors, and maybe join the Thiamine Girl Summer revolution. ### ⭐⭐⭐⭐⭐ Good product, reasonable priced *by A***R on July 3, 2026* This product was recommended on YouTube by Dr. Berg. It was a good company and the price is reasonable things that he usually sells off his YouTube video cost a little more but for the most part you get the gist of what you need to buy this is a really good company ### ⭐⭐⭐⭐⭐ It really works....I think. *by K***Y on January 4, 2023* I decided to order this product after seeing a YouTube video that recommended this particular supplement. My reason was because I suffer from neuropathy and as well as feeling lethargic, I'm overweight and no matter how I control my diet nothing changes. The worst thing for me was the lethargy, wanting and needing to do stuff but felt just too exhausted for no apparent reason, and never getting anything accomplished. I've always been an active person and since I was diagnosed with neuropathy the feeling of being pathetic was just getting worse and worse. So in a leap of faith after reading some of the reviews on this particular supplement/vitamin I started taking them 10/12/2022. At first I wasn't sure if they were doing anything for me but I realized that they needed to build up in my system to be of any effect so I continued to take them as advised on the bottle. After about a week one of the first things that I did notice was that my balance ( a symptom of neuropathy ) had improved immensely and I was no longer hanging on to counters, furniture etc. just to get around the house. As I write this it is 01/04/2023 and for the last 3 days I have started to feel like my old self. I've been knocking out the chores like nobody's business and been able to get things accomplished. I know it's early days to be celebrating my new found energy, and I will update as necessary with further changes to my health, but I am definitely seeing some positive changes to y health, another one among them being my appetite and eating habits. I am no longer craving food and snacks just for the sake of it but I have found myself being more sensible in my food choices and habits despite going through Christmas and New Year where there is always more temptations than normal. So in summary, I'm glad I took the leap of faith and also hope that my health continues to improve. I did go with the automated replenishment order as I wanted to really give it a good go and stick with it for at least 3-4 months before making a final decision but so far I feel fantastic and excited to be feeling like my old self again. Like I said, I will update this again whether I slip back into my pre Benfotiamine status or continue to improve. ## Frequently Bought Together - Doctor's Best Benfotiamine 300 with BenfoPure, Helps Maintain Healthy Glucose Metabolism, Non-GMO, Vegan, Gluten Free, Soy Free, 300 mg, 60 Veggie Caps - Doctor's Best Alpha-Lipoic Acid 600, Supports Antioxidant Function & Glycemic Balances, Non-GMO, Gluten Free, Vegan, Soy Free, 600 mg, 60 Veggie Caps - Doctors BEST High Absorption Magnesium Lysinate Glycinate 100% Chelated, Muscle Relaxation & Sleep Support, Non-GMO, Gluten Free, Soy Free, Vegan, 100% Chelated 240 Tablets --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/682397230-doctors-best-benfotiamine-300mg-supplement-bioavailable-vitamin-b1-for-men](https://www.desertcart.us/products/682397230-doctors-best-benfotiamine-300mg-supplement-bioavailable-vitamin-b1-for-men) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-11*