

⚡ Power your day, fuel your mind — the B1 boost you can't miss!
Swanson Vitamin B1 delivers 100mg of pure Thiamin per capsule to support healthy metabolism, energy production, and nerve cell function. Manufactured in GMP-certified facilities and independently tested for purity, this 250-capsule supply offers a trusted, science-backed supplement designed for professionals seeking sustained mental and physical vitality.









| ASIN | B00068T8MM |
| Best Sellers Rank | #129,730 in Health & Household ( See Top 100 in Health & Household ) #84 in Vitamin B1 (Thiamine) Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (567) |
| Date First Available | October 25, 2004 |
| Is Discontinued By Manufacturer | No |
| Manufacturer | Swanson Premium |
| Product Dimensions | 2.5 x 2.5 x 4.5 inches; 4.96 ounces |
C**E
Great product
Easy to swallow very good price. Pill size the right size. No smell at all. Quality packaging!
D**.
I wanted this as a supplemental addition for pancreatic defense.
I have been taking Swanson products for decades along with other brands . Theirs is a high quality brand that I trust to deliver the ultimate in absorbtion and assimilation into the body for about half the cost of other name brands.
G**N
excellent value
These vitamins are American made and you cannot beat the price. 250mg is a hefty dose of Thiamine, but they go up to 500mg. As a supplement only 1-2mg a day is actually recommended. It is a water-soluble vitamin meaning it shouldn't build up to a toxic level in your body. Poor nutrition and drinking too much alcohol can both lead to B-1 deficiency. Beriberi is a disease caused by thiamine deficiency; on the more nightmare end of the spectrum you have Wernicke-Korsakoff syndrome. People with hyperthyroidism and prolonged fluid loss may also benefit from thiamine supplements. Good sources of thiamine in your diet include cereals, vegetables, and meats (pork in particular). Take care!
K**U
Good product, service not terribly fast
The sulphur in Vitamin B-1 helps ward off bug/mosquito bites. I take it most of the year. Swanson's product is good; no complaints there. Service, however, is not up to Amazon Prime levels. Took a week or two to receive it. I'll still re-order when necessary, I'll just plan ahead...
L**R
My mom loves it
My mom has bladder problems where she can’t stop peeing including overnight as well and not only that but also she lacks in b vitamins, showed her the video by Dr berg about what is causing one to pee so I got this vitamin for her like a month ago or 2 and since than her peeing is now under control by this vitamin and my mom thanked me so much for this vitamin a lot so I will come back here soon to order another one just for her. I have answers only for myself so do not ask me any questions about anything on this vitamin, everyone is different so leave me alone. This vitamin took 2 weeks after to feel a difference.
F**P
Changed my life!
This product changed my life! I'm not prone to exaggeration and don't leave that many reviews but a product this good is worth taking the time to endorse. I've been using it for a few months. Within a couple days of starting the B-1, I was feeling much better. I have not experienced any depression since I started taking it after battling depression my entire life. I've found that methlyfolate also helps (I've been taking that for a few years) but the B-1 has had a greater effect. The capsules are odorless, tasteless, and easy to swallow.
K**M
Thiamin For Goats
I buy this for our goats to make sure they get enough thiamin. We give it weekly, or anytime they seem a bit off, inserting the capsule in a dried plum (prune). Easy Peasy, and they think it’s a treat!
J**H
Great product
Great product Very good price. Product seems to work very well easy to swallow. I have bought several times.
L**A
I was told to take 100mg thiamine daily. ( I had noticed that other brands have less B1 per capsule)
Trustpilot
1 week ago
2 weeks ago