We recently launched vegan B-complex supplements. Here’s why they’re important, when you might need a B-complex supplement, and why we decided to introduce them.



What are B vitamins?

B vitamins refer to a class of eight vitamins that are essential for your health. It includes:

  • Thiamine (B1)
  • Riboflavin (B2)
  • Niacin (B3)
  • Pantothenic acid (B5)
  • Pyridoxine (B6)
  • Biotin (B7)
  • Folate (B9) — also called folic acid
  • Cobalamin (B12)

All eight B vitamins help convert food into energy. They’re also important for blood cell and hormone production, a healthy nervous and digestive system, and healthy skin, hair, and eyes.

B vitamins are water soluble so most of them can’t be stored in your body — so you need to consistently get them from your diet.

When to take a B-complex supplement

Most people get enough B vitamins through diet alone. But you might need a B-complex supplement if you:

  • are pregnant or breastfeeding — your body needs more B vitamins, particularly B12 and folate, for your growing baby
  • follow a vegan, vegetarian, or dairy-free diet — these are sometimes lacking in B12
  • are over 50 years — you might be at risk of B12 deficiency because your body finds it harder to absorb this vitamin
  • have a gastrointestinal disorder — like coeliac or Crohn’s disease
  • drink excessive amounts of alcohol
  • take certain medications — like anticonvulsants and proton pump inhibitors (PPIs)
  • have a genetic disorder that makes you prone to a nutrient deficiency — for example, the MTHFR genetic mutation that affects folate metabolism

More research is still needed but B-complex supplements might also help reduce stress, boost your mood, and reduce the symptoms of anxiety and depression.

To double-check whether you need a supplement or not, it’s possible to measure your vitamin B12 and folate levels with a blood test.

* It’s important not to take any supplements before doing your Thriva test in the morning. In particular, avoid taking a supplement containing biotin before your test — this can interfere with your sample being processed. If possible, also try to do your sample before taking any medications.

What’s in our B-complex?

Our B-complex food supplement contains all eight B vitamins in a single capsule.

We only use the highest quality, ethically sourced ingredients.

Plus our B-complex supplement doesn’t contain any additives or anything which can limit your body from absorbing it. They’re also free from gluten, wheat, lactose, yeast, sugar, and soy. They also don’t contain any genetically modified organisms (non-GMO).

Each B-complex capsule provides you with everything you need each day, with the exception of folate which provides you with half of your recommended daily intake — learn more about recommended intakes from the NHS.

Since B vitamins are water-soluble, having too much is unlikely.

Why we chose a vegan B-complex supplement

It was really important to us that our first vitamin range was as inclusive as possible. Vegans and vegetarians are particularly at risk of having low B vitamin levels. So we made sure to find high-quality vegan sources that can cater to everyone — especially those most in need.



The Association of British Dietitians (2016). Food Fact Sheet: Supplements. Retrieved 25 February 2019 from https://www.bda.uk.com/foodfacts/supplements.pdf.

Morris, J. K., Rankin, J., Draper, E. S., Kurinczuk, J. J., Springett, A., Tucker, D., … & Wald, N. J. (2016). Prevention of neural tube defects in the UK: a missed opportunity. Archives of Disease in Childhood, 101(7), 604-607.

National Health Services (2017). Health: Vitamins and minerals: B vitamins and folic acid. Retrieved 25 February 2019 from https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-b/.

National Institue of Health (2018). Office of dietary supplements. Vitamin B12: Fact sheet for health professionals. Retrieved 25 February 2019 from https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/.

National Institue of Health (2018). Office of dietary supplements. Folate: Fact sheet for health professionals. Retrieved25 February 2019 from https://ods.od.nih.gov/factsheets/Folate-HealthProfessional/.

Reynolds, E. (2006). Vitamin B12, folic acid, and the nervous system. The Lancet Neurology5(11), 949-960.

Stabler, S. P. (2013). Vitamin B12 deficiency. New England Journal of Medicine368(2), 149-160.

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Commercial Manager at Thriva - with a background in public health