Royal Prince Alfred Hospital Royal Prince Alfred Hospital
Allergy Unit

Student research


Nutritional adequacy and diet quality of adult patients with food intolerance before and on the Royal Prince Alfred Hospital Elimination Diet

by
Michelle Nearchou
Master of Nutrition and Dietetics, The University of Sydney
Supervisors: Robert Loblay, Velencia Soutter, Anne Swain, Carling Chan, Kirsty Le Ray, Wendy Stuart-Smith, Neelam Pun, Amy Wu, Rajshri Roy, Margaret Allman-Farinelli
October 2015

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Abstract

Aims: The aim of this study was to assess and compare the nutritional adequacy and diet quality of adult patients with food intolerance before and on the Royal Prince Alfred Hospital Elimination Diet.

Methods: As part of an ongoing prospective study, patients were asked to record their dietary intake using a four day weighed food record at two stages; 1) on their regular diet, and 2) on the Elimination Diet. Nutritional adequacy was assessed by comparing nutrient intakes with Australian and New Zealand Nutrient Reference Values. Diet Quality was assessed using the Healthy Eating Index for Australians based on the 2013 Australian Dietary Guidelines.

Results: The study sample consisted of 19 patients in total. Overall mean total energy intake decreased and macronutrient intake became more in line with recommendations on the Elimination Diet. Core food group intake decreased on the Elimination Diet, however at both time points most patients did not meet recommended intake for core food groups except meat and alternatives. Overall diet quality was found to improve on the Elimination Diet due to decreased intake of noncore foods, sodium and saturated fat. It was identified in this study sample that the role of additional nutrient supplementation was essential for adequate intakes of vitamin A, thiamin, folate and calcium on the Elimination Diet.

Conclusions: This present study indicates the need for additional supplementation of key nutrients, accessible recipe suggestions which incorporate allowed food sources for key nutrients at risk and additional education regarding core food group recommendations for all patients following the Elimination Diet.