Vitamin B-1 300 MG | GNC

GNC Vitamin B-1 300 MG


Item # 259512


Size: 100 Tablets

Add to cart options

Product Options

Product Actions


Product Information


Essential for proper nerve & muscle function*

Label (click image to enlarge)


As a dietary supplement, take one tablet daily.



Other Ingredients

Cellulose, Whole Brown Rice Powder (Oryza sativa)
Distributed by: General Nutrition Corporation Pittsburgh, PA 15222

Nutrition Facts

Serving Size  1 Vegetarian Capsule(s)
Servings Per Container  100

Amount Per Serving     % DV

Thiamin (Vitamin B-1)(as Thiamin Hydrochloride) 300 mg   20000%

** Daily Value (DV) not established.


4.3 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
I was advised by my doctor to take several of the Vitamin B's, and all of them are to be taken individually, rather than in a B Complex form. This is the higest doseage I can find of the Vit B-1 sold over the counter, on the market. I think it's a great product! I've had no adverse affects or reactions and I've been on this for almost a year now! Keep up the good work!
June 20, 2017
1 year ago
Helps nerve and muscle function
Vitamin B-1 helps with my nerve and muscle function. As an Multiple Sclerosis victim, it is important to keep nerves and muscles operating.
March 20, 2017
Best on the market
The GNC B-1 has been a remarkable product for me, my friends and family. Taking B-1 during times of stress or depression helped me tremendously! I have tried other brands of B-1 and none have the same effect, returning me to feeling myself again. Everyone of my friends and family that I have suggested taking this for stress relief, have found it fantastic and several of them found it so good the often carry it with them... great to have on hand. I give this product 5 stars!! Bell H.
July 6, 2016
Dosage is too high
That vitamin B1 300 milligrams dosage is too high, and it has adverse effect on the health instead benefiting the health. That 300mg vitamin B1 dosage cause my lips to chap, and weaken my muscles that would wane my physical performances. this store need to come up and carry vitamin B1 line at 100mg and 200mg like many of their supplement store competitors are doing, or else I would have to split the 300mg pill to a safe dosage. So 300mg vitamin B1 is only good for human body that has high vitamin B1 deficiency.
March 31, 2016
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 1 answer
Is B1 used for neuropathy?
A shopper on Apr 23, 2016
BEST ANSWER: Is b,1 used for neuropathy
Can you take the B-1 vitamin with mens stamiol ultra?
Travis T on Mar 11, 2018