ASK A VEGAN

HowdovegansgetB12?

From supplements or fortified foods (plant milks, nutritional yeast, cereals). B12 is made by bacteria — animals get it from soil, feed additives, or their own supplementation.

HEALTH

Short answer

From supplements or fortified foods (plant milks, nutritional yeast, cereals). B12 is made by bacteria — animals get it from soil, feed additives, or their own supplementation.

HEALTH

The detail

Recommended dose: 25-100 µg daily, or 1000-2000 µg 1-2× per week. Cyanocobalamin is the most studied form. B12 deficiency is not a vegan-only issue — up to 20% of older adults are deficient regardless of diet.

Livestock in factory farms are routinely supplemented with B12; vegans just skip the animal middle-step and take it directly.

Source: Pawlak et al., Nutr Rev 2013;71(2):110-117.

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