Metabolic Vitamin B12 Status on a Mostly Raw Vegan Diet with Follow-Up Using Tablets, Nutritional Yeast, or Probiotic Supplements

  title={Metabolic Vitamin B12 Status on a Mostly Raw Vegan Diet with Follow-Up Using Tablets, Nutritional Yeast, or Probiotic Supplements},
  author={Michael S. Donaldson},
  journal={Annals of Nutrition and Metabolism},
  pages={229 - 234}
Background: Pure vegetarian diets might cause cobalamin deficiency due to lack of dietary intake. [] Key Method Results: 49 subjects were tested. Most subjects (10th to 90th percentile) had followed this diet 23–49 months. 6 subjects had serum B12 concentrations <147 pmol/l (200 pg/ml). 37 subjects (76%) had serum B12 concentrations <221 pmol/l (300 pg/ml). 23 subjects (47%) had abnormal urinary MMA concentrations above or equal to 4.0 µg/mg creatinine. Sublingual cyanocobalamin and nutritional yeast, but…

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