nutrients Article Maternal Intake of Cow’s Milk during Lactation Is Associated with Lower Prevalence of Food Allergy in Offspring Mia Stråvik 1 , Malin Barman 1,2 , Bill Hesselmar 3, Anna Sandin 4, Agnes E. Wold 5 and Ann-Sofie Sandberg 1,* 1 Department of Biology and Biological Engineering, Food and Nutrition Science, Chalmers University of Technology, 412 96 Gothenburg, Sweden;
[email protected] (M.S.);
[email protected] (M.B.) 2 Institute of Environmental Medicine, Unit of Metals and Health, Karolinska Institutet, 171 77 Stockholm, Sweden 3 Department of Paediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden;
[email protected] 4 Department of Clinical Science, Pediatrics, Sunderby Research Unit, Umeå University, 901 87 Umeå, Sweden;
[email protected] 5 Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 413 90 Gothenburg, Sweden;
[email protected] * Correspondence: ann-sofi
[email protected] Received: 10 November 2020; Accepted: 25 November 2020; Published: 28 November 2020 Abstract: Maternal diet during pregnancy and lactation may affect the propensity of the child to develop an allergy. The aim was to assess and compare the dietary intake of pregnant and lactating women, validate it with biomarkers, and to relate these data to physician-diagnosed allergy in the offspring at 12 months of age. Maternal diet during pregnancy and lactation was assessed by repeated semi-quantitative food frequency questionnaires in a prospective Swedish birth cohort (n = 508). Fatty acid proportions were measured in maternal breast milk and erythrocytes. Allergy was diagnosed at 12 months of age by a pediatrician specialized in allergy.