title: [Severe macrocytic anaemia and secondary hyperparathyroidism in a vegan].
abstract: Nutritional deficiency anaemia in vegans is common and usually due to lack of vitamin B12, as this vitamin is found almost exclusively in animal-based food products. In this case report we present a 39-year-old male vegan with severe macrocytic anaemia due to vitamin B12 deficiency as well as secondary hyperparathyroidism due to severe vitamin D deficiency. We want to emphasize the importance of a detailed nutritional history for patients with anaemia, and the need for vitamin B12 and vitamin D supplements for people who comply with a vegan diet.
authors: Kredsløbscenteret, Sygehus Sønderjylland, Kresten Philipsens Vej 15, 6200 Aabenraa. elizabethforland@gmail.com.
authors: Elizabeth Siren Bjerga
authors: ES
authors: Førland
authors: Mats Jacob Hermansson
authors: MJ
authors: Lindberg
mesh_terms: D000328:Adult; D000748:Anemia, Macrocytic / Q000188:drug therapy / Q000209:etiology*; D000067269:Diet, Vegan / Q000009:adverse effects*; D019587:Dietary Supplements; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000188:drug therapy / Q000209:etiology*; D008297:Male; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000150:complications / Q000188:drug therapy / Q000209:etiology; D014807:Vitamin D / Q000627:therapeutic use; D014808:Vitamin D Deficiency / Q000150:complications / Q000188:drug therapy / Q000209:etiology
chemical_list: D014807:Vitamin D; D014805:Vitamin B 12