Do meat eaters lack B12 too?
Besvaret 27. oktober 2026
Yes, some meat eaters lack B12, but far less often than vegans and vegetarians. A systematic review of 141 studies found B12 deficiency in 0 to 16 percent of meat eaters, while for vegans the figure ranged from 4 to 73 percent depending on the study. Both authors work for Unilever, which sells fortified foods and supplements. Meat eaters took in 5.6 micrograms of B12 a day on average, vegans 1.5.
Age matters too, whatever people eat. According to the US National Institutes of Health, between 3 and 43 percent of older adults living at home lack B12, depending on how deficiency is defined, especially those whose stomach lining has thinned (atrophic gastritis).
If you are unsure about your own needs, talk to your doctor.
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- Gennemgang af 141 studier fra Unilever, 2021Samler mange studier · Systematisk gennemgang · 141 individuelle undersøgelserNutrient Intake and Status in Adults Consuming Plant-Based Diets Compared to Meat-Eaters: A Systematic Review
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