Détail du document
Identifiant
oai:www.zora.uzh.ch:236915
Sujet
Medical Clinic Clinic for Gastroenterology and He... 610 Medicine & healthAuteur
Henjum, Sigrun https://orcid.org/0000-0002-0671-2688 Groufh-Jacobsen, Synne https://orcid.org/0000-0001-8757-5111 Aakre, Inger https://orcid.org/0000-0002-3046-1823 Gjengedal, Elin Lovise Folven https://orcid.org/0000-0002-7771-0153 Langfjord, Mina Marthinsen Heen, Espen Sele, Veronika Andersson, Maria https://orcid.org/0000-0003-4859-1383Langue
engEditeur
Springer
Catégorie
Subjects = 04 Faculty of Medicine
Année
2023
Date de référencement
12/10/2023
Mots clés
following lacto-ovo 17 uic diet thyroid urinary iodine median µg/l seleniumRésumé
PURPOSE Populations following a plant-based diet may be at particular risk of thyroid dysfunction due to low iodine and selenium intakes.
The main purpose was to assess thyroid function and urinary concentration of iodine, selenium, and arsenic, in subjects following a vegan, lacto-ovo vegetarian, or pescatarian diet.
METHODS In Norway, a country without mandatory dietary iodine fortification, 205 adults, following vegan (n = 115), lacto-ovo vegetarian (n = 55) and pescatarian diet (n = 35) were included.
Thyroglobulin (Tg), thyroid-stimulating hormone (TSH), free triiodothyronine (fT3), free thyroxine (fT4), and serum anti-TPO (S-anti-TPO) were measured in a venous blood sample and concentrations of iodine (UIC), creatinine (UCC), selenium, and arsenic were measured from single spot urine samples.
RESULTS Subclinical hypothyroidism (TSH > 4.0 mU/L) was observed in 3% of subjects.
The overall median (p25, p75) Tg was 17 (9, 30) µg/L and vegans had higher Tg compared to pescatarians.
Vegans not consuming iodine-containing supplements (n = 43) had higher Tg, than supplement users (n = 72), 27 (11, 44) vs. 16 (8, 25) µg/L and higher fT4, 16 (15, 17) vs. 15 (14, 17) pmol/L, respectively.
The overall median UIC was 57 (28, 130) µg/L, all dietary groups had median UIC below WHO thresholds.
Median urinary selenium and arsenic concentration was 13 (6, 22) and 3 (2, 8) µg/L, respectively.
CONCLUSION The prevalence of subclinical hypothyroidism was low and fT4 and fT3 were within the normal range for all dietary groups.
Vegans had significantly increased Tg compared to pescatarians.
Henjum, Sigrun, https://orcid.org/0000-0002-0671-2688,Groufh-Jacobsen, Synne, https://orcid.org/0000-0001-8757-5111,Aakre, Inger, https://orcid.org/0000-0002-3046-1823,Gjengedal, Elin Lovise Folven, https://orcid.org/0000-0002-7771-0153,Langfjord, Mina Marthinsen,Heen, Espen,Sele, Veronika,Andersson, Maria, https://orcid.org/0000-0003-4859-1383, 2023, Thyroid function and urinary concentrations of iodine, selenium, and arsenic in vegans, lacto-ovo vegetarians and pescatarians, Springer
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