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Thiamine (B1)

Take a look at the sources and effects of thiamine (vitamin B1).
Sophie Medlin
Head of Nutritional Research
April 14, 2020
2 min read

Major Functions

Essential, water-soluble vitamin - Processing food into energy - Needed by every tissue in the body

In every dose

30mg (equal to 20 bowls of fortified cereal or 100 mussels)

Fighting Talk

Untreated thiamine deficiency, (although this is rare) could result in delirium and brain damage and higher risks of depression. It’s also being tested, with promising results on the cognitive function of Alzheimer’s patients.

What’s in it for my brain?

Thiamine is needed for normal brain and nervous system function, and could play an important role in mental health.

Fringe benefits

Essential for energy release 

Used by every cell in the body 

Plays well with

B1 is available through diet, but mostly from animal sources, so those on a plant-based diet benefit from supplementation. To optimise the release of energy, it’s best to consume B1 with other B vitamins.

Clever stuff

In a study that supplemented thiamine alongside antidepressants, symptoms were alleviated faster.


Here’s a handful of relevant scientific studies on vitamin B1 (thiamine).

  • Lu’o’ng, K. V. Q., & Nguyễn, L. T. H. (2011). Role of thiamine in Alzheimer's disease. American Journal of Alzheimer's Disease & Other Dementias®, 26(8), 588-598.
  • Ghaleiha, A., Davari, H., Jahangard, L., Haghighi, M., Ahmadpanah, M., Seifrabie, M. A., ... & Brand, S. (2016). Adjuvant thiamine improved standard treatment in patients with major depressive disorder: results from a randomized, double-blind, and placebo-controlled clinical trial. European archives of psychiatry and clinical neuroscience, 266(8), 695-702.
  • Zhang, G., Ding, H., Chen, H., Ye, X., Li, H., Lin, X., & Ke, Z. (2013). Thiamine nutritional status and depressive symptoms are inversely associated among older Chinese adults. The Journal of nutrition, 143(1), 53-58.

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This product is not designed to replace a varied and balanced diet. Do not exceed stated dose. If you are pregnant, breastfeeding or taking any medication, please consult your doctor before use. Do not use it if the sachet has been opened. Store in a cool, dry place. Keep out of reach of children.