FREE UK delivery on orders £50+
For practitioners, by practitioners
Highest quality, GMP certified
Family owned, British made

Vitamin B1 Thiamine Pyrophosphate (60caps)


Vitamin B1 is also known as Thiamine and is one of the 8 B vitamins.

Full product description
From £0.39/Capsule

Vitamin B1 is also known as Thiamine and is one of the 8 B vitamins. In common with all the B vitamins it is water-soluble and so the body does not store it. Depletion can occur within 14 days.

Metabolics Vitamin B1 is in the form of Thiamine Pyrophosphate, one of the forms that occur in the human body making it readily available. Most Vitamin B1 supplements come in the form of Thiamine Hydrochloride which requires conversion to Thiamine Pyrophosphate in the body before it can be used and relies on adequate Magnesium, ATP and the presence of the enzyme Thiamine Pyrophosphokinase. This makes Thiamine Pyrophosphate the preferable form.

What does Vitamin B1 do?

  • It contributes to normal energy yielding metabolism. Thiamine pyrophosphate is required as a coenzyme for a few but important enzymes that enable pyruvate to form Acetyl Co A (see Acetyl Co A Support), and alpha ketoglutarate to form Succinyl-Co A products in the cells that make energy from food.
  • It contributes to normal functioning of the nervous system. In the brain Thiamine is required by nerve cells and supporting nervous system cells (or "glial cells"), it's also needed to create neurotransmitters.
  • It contributes to normal psychological function – Thiamine Pyrophosphate is necessary to create some neurotransmitters (brain chemicals) that are essential for normal psychological function.
  • It contributes to the normal function of the heart -Thiamine is found in high concentration in the heart as well as the brain, liver and kidney. The heart is particularly sensitive to Thiamine deficiency, and impairment of the Thiamine Pyrophosphate dependent enzymes primarily affects the heart and nervous system.

    Deficiency of Vitamin B1

    Deficiency is rare as foods and cereals are fortified but symptoms of deficiency might include tiredness, confusion and irritability, apathy, decrease in short term memory, depression and abdominal discomfort. There is a specific deficiency disorder called Wernicke-Korsakoff syndrome (a neurological disorder), which can occur commonly in malnourished chronic alcoholics, which is a result of Thiamine deficiency. The active transport of thiamine in the small intestine is inhibited by alcohol and folic acid deficiency.



"I am pleased with the apparent freshness and quality of the capsules, though I wish they were available in a lower dosage and quantity. I feel it's a waste to be given a count of sixty with a daily dose of one capsule, but it is recommended to discard the remainder after thirty days. Though it has only been one week, I do seem to feel an overall positive result. I am looking forward to another week."
Trusted Customer | Posted 27 days ago | Read full review
"I really feel better in energy and find this helpful in peripheral neuropathy."
Sudha Mehta | Posted 3 months ago | Read full review
"I highly recommend the Metabolics products over the lower quality high street products that are available. I have been experiencing symptoms which are common with a lack of B12 & B1, & since taking the Metabolics products I've felt better. Tests showed I'm low on Vit D also, so have opted to take these as-well."
Trusted Customer | Posted 6 months ago | Read full review
Trusted Customer | Posted 6 months ago | Read full review
Darrin Hoppe | Posted 6 months ago | Read full review
Each capsule contains
Thiamine (Vitamin B1)
6.5 mg
† Nutrient Reference Value (NRV*) not established
Cellulose, Hydroxypropyl Methylcellulose (capsule), Thiamine Pyrophosphate.
No Gluten Containing IngredientsNo Gluten Containing Ingredients
No Nut Containing IngredientsNo Nut Containing Ingredients
Recommended dose 1 capsule per day with food. The stated recommended dose can be changed as directed by your healthcare practitioner. Do not exceed this recommended dose. Consume within 3 months of opening.
If pregnant or breast feeding, consult your health care practitioner before using. This product should not be used as a substitute for a varied diet.
Store in a cool, dry place out of reach of children.
Serving size: 1 Capsule