The association of milk and dairy consumption with iodine status in pregnant women in Oporto region

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Ferreira, P (Author) Other; Pinheiro, C (Author) Other; Coelho, CM (Author) Other; Guimaraes, J (Author) Other; Pereira, G (Author) Other; Moreira, NX (Author) Other; Cortez, A (Author) Other; Bracchi, I (Author) Other; Pestana, D (Author) Other; Mota, IB (Author) Other; Prucha, C (Author) Other; Martins, C (Author) Other; Ribeiro, CA (Author) Other; Pinto, E (Author) Other; Agostinho Almeida (Author) FFUP; Delerue Matos, C (Author) Other; Montenegro, N (Author) Other; Dias C (Author) FMUP; Moreira Rosario, A (Author) Other; Azevedo L (Author) FMUP; Brantsaeter, AL (Author) Other; ramalho, c (Author) FMUP; Fernandes, VC (Author) Other; Calhau, C (Author) Other; Leite, JC (Author) Other; Elisa Keating (Author) FMUP

Journal

Title: British Journal of Nutrition

Vol. 126

Pages: 1314-1322

ISSN: 0007-1145

Publisher: Cambridge University Press

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 5 Citations

Other information

Authenticus ID: P-00T-9TT

DOI: 10.1017/s000711452100009x

Abstract (EN): The role of milk and dairy products in supplying iodine to pregnant women is unknown in Portugal. The aim of this study was to evaluate the association between milk and dairy product consumption and the iodine status of pregnant women in the IoMum cohort of the Oporto region. Pregnant women were recruited between 10 and 13 weeks of gestation, when they provided a spot urine sample and information on lifestyle and intake of iodine-rich foods. Urinary iodine concentration (UIC) was determined by inductively coupled plasma MS. A total of 468 pregnant women (269 iodine supplement users and 199 non-supplement users) were considered eligible for analysis. Milk (but not yogurt or cheese) intake was positively associated with UIC, in the whole population (P = 0 center dot 02) and in the non-supplement users (P = 0 center dot 002), but not in the supplement users (P = 0 center dot 29). In non-supplement users, adjusted multinomial logistic regression analysis showed that milk consumption <3 times/month was associated with a five times increased risk of having UIC < 50 mu g/l when compared with milk consumption >= 2 times/d (OR 5 center dot 4; 95 % CI 1 center dot 55, 18 center dot 78; P = 0 center dot 008). The highest UIC was observed in supplement users who reported consuming milk once per d (160 mu g/l). Milk, but not yogurt or cheese, was positively associated with iodine status of pregnant women. Despite the observed positive association, daily milk consumption may not be sufficient to ensure adequate iodine intake in this population.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9