Healthier options do not reduce total energy of parent intended fast food purchases for their young children: a randomised controlled trial

Aim: This study aimed to assess the impact of including healthier options on fast food restaurant menus on total energy of parent-reported intended purchases and frequency to eat at fast food outlets for young children. Methods: Parents from an existing health survey cohort were approached to participate. They were eligible to participate if they resided in the Hunter region in NSW, could understand English and had a child aged between 3 and 12 years. Parents were randomised using a random number function embedded in the computer assisted telephone interview software, to receive one of two hypothetical fast food menus: one with healthier options and the other without healthier options (standard menu). After receiving these menus, participants completed a second telephone survey. Parents reported intended food purchases for their nominated child and intended number of visits to the fast food outlet with the hypothetical menu. Results: There was no significant difference in total energy of parent-reported intended purchases for their child, between the standard menu with (n = 101) and without (n = 113) healthier options (P = 0.60). There was also no difference in the frequency of intending to eat at the fast food restaurant between the two groups (P = 0.80). Conclusions: The provision of healthier options in itself may not reduce the total energy of intended purchases of parents for young children at fast food restaurants.