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Updated: Apr 4, 2026

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
Published on: July 14, 2023
[Severe macrocytic anaemia and secondary hyperparathyroidism in a vegan]
Elizabeth Siren Bjerga Førland1, Mats Jacob Hermansson Lindberg
1Kredsløbscenteret, Sygehus Sønderjylland, Kresten Philipsens Vej 15, 6200 Aabenraa. elizabethforland@gmail.com.
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.
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