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Nutrient guide

Vitamin B12

Vitamin B12 is made only by microorganisms. With a fully plant-based diet, a supplement is essential.

Keep an eye on it with a plant-based diet

What the body needs it for

  • Blood formation
  • Nervous system
  • Cell division and energy metabolism

How much you need

Adults: 4 µg per day (DGE estimate). Supplements are higher-dosed because only part is absorbed.

Good plant sources

  • B12 supplement
  • Fortified plant drinks and flakes

How to make the most of it

  • Seaweed, sauerkraut or unwashed vegetables are not reliable sources.
  • Have your status checked regularly, e.g. holo-TC or MMA.
  • More in the detailed blog article.
Read the vitamin B12 article

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Reference values according to the German Nutrition Society (DGE) for adults unless stated otherwise. DGE reference values