What happens to food choices when a gluten-free diet is required? A prospective longitudinal population-based study among Swedish adolescent with coeliac disease and their peers.

A dietary survey was performed during a large screening study in Sweden among 13-year-old adolescents. The aim was to study how the intake of food groups was affected by a screening-detected diagnosis of coeliac disease (CD) and its gluten-free (GF) treatment. Food intake was reported using a FFQ, and intake reported by the adolescents who were diagnosed with CD was compared with the intake of two same-aged referent groups: (i) adolescents diagnosed with CD prior to screening; and (ii) adolescents without CD. The food intake groups were measured at baseline before the screening-detected cases were aware of their CD, and 12-18 months later. The results showed that food intakes were affected by screen-detected CD and its dietary treatment. Many flour-based foods were reduced such as pizza, fish fingers and pastries. The results also indicated that bread intake was lower before the screened diagnosis compared with the other studied groups, but increased afterwards. Specially manufactured GF products (for example, pasta and bread) were frequently used in the screened CD group after changing to a GF diet. The present results suggest that changing to a GF diet reduces the intake of some popular foods, and the ingredients on the plate are altered, but this do not necessarily include a change of food groups. The availability of manufactured GF replacement products makes it possible for adolescents to keep many of their old food habits when diagnosed with CD in Sweden.

Nutrient intake in adolescent girls and boys diagnosed with coeliac disease at an early age is mostly comparable to their non-coeliac contemporaries.

BACKGROUND: Food habits, nutrient needs and intakes differ between males and females, although few nutritional studies on patients with coeliac disease (CD) have reported results stratified by gender. OBJECTIVES: To compare energy and nutrient intakes among 13-year olds diagnosed with CD in early childhood with those of a non-coeliac (NC) age- and gender-matched control group, and also with estimated average requirements (EAR). METHODS: A case-control study was conducted in Sweden 2006-2007 within the coeliac screening study ETICS (Exploring The Iceberg of Coeliacs in Sweden). Dietary intake was assessed among 37 adolescents (23 girls) diagnosed with CD at median age 1.7 years (CD group) and 805 (430 girls) NC controls (NC group) using a food-frequency questionnaire covering 4 weeks. Reported energy intake was validated by comparison with the calculated physical activity level (PAL). RESULTS: Regardless of CD status, most adolescents reported an intake above EAR for most nutrients. However, both groups had a low intake of vitamin C, with 13% in the CD-group and 25% in the NC-group below EAR, and 21% of boys in the CD-group below EAR for thiamine. The intake of fatty acids was unbalanced, with a high intake of saturated and a low intake of unsaturated fats. Girls and boys in the CD-group had an overall lower nutrient density in reported food intake compared to girls and boys in the NC-group. CONCLUSIONS: Nutrient intake of adolescent girls and boys with CD was mostly comparable to intakes of NC controls. Dietitians should take the opportunity to reinforce a generally healthy diet when providing information about the gluten-free diet.