Dianne P Reidlinger1, Thomas Ab Sanders2, Louise M Goff2. 1. 1Faculty of Health Sciences and Medicine,Bond University,2 Promethean Way, Robina,QLD 4226,Australia. 2. 2Faculty of Life Sciences & Medicine,Diabetes and Nutritional Sciences Division,King's College London,London,UK.
Abstract
OBJECTIVE: To determine whether a cardioprotective dietary intervention based on UK dietary guidelines was more expensive than a conventional UK diet. DESIGN: Cost analysis of food records collected at baseline and after a 12-week dietary intervention of a cardioprotective diet v. conventional UK diet. SETTING: A randomized controlled dietary intervention study (CRESSIDA; ISRCTN 92382106) investigating the impact of following a diet consistent with UK dietary guidelines on CVD risk. SUBJECTS:Participants were healthy UK residents aged 40-70 years. A sub-sample of participants was randomly selected from those who completed the cardioprotective dietary intervention (n 20) or the conventional UK dietary intervention (n 20). RESULTS:Baseline diet costs did not differ between groups; mean daily food cost for all participants was £6·12 (sd £1·83). The intervention diets were not more expensive: at end point the mean daily cost of the cardioprotective diet was £6·43 (sd £2·05) v. the control diet which was £6·53 (sd £1·53; P=0·86). CONCLUSIONS: There was no evidence that consumption of a cardioprotective diet was more expensive than a conventional dietary pattern. Despite the perception that healthier foods are less affordable, these results suggest that cost may not be a barrier when modifying habitual intake and under tightly controlled trial conditions. The identification of specific food groups that may be a cost concern for individuals may be useful for tailoring interventions for CVD prevention for individuals and populations.
RCT Entities:
OBJECTIVE: To determine whether a cardioprotective dietary intervention based on UK dietary guidelines was more expensive than a conventional UK diet. DESIGN: Cost analysis of food records collected at baseline and after a 12-week dietary intervention of a cardioprotective diet v. conventional UK diet. SETTING: A randomized controlled dietary intervention study (CRESSIDA; ISRCTN 92382106) investigating the impact of following a diet consistent with UK dietary guidelines on CVD risk. SUBJECTS:Participants were healthy UK residents aged 40-70 years. A sub-sample of participants was randomly selected from those who completed the cardioprotective dietary intervention (n 20) or the conventional UK dietary intervention (n 20). RESULTS: Baseline diet costs did not differ between groups; mean daily food cost for all participants was £6·12 (sd £1·83). The intervention diets were not more expensive: at end point the mean daily cost of the cardioprotective diet was £6·43 (sd £2·05) v. the control diet which was £6·53 (sd £1·53; P=0·86). CONCLUSIONS: There was no evidence that consumption of a cardioprotective diet was more expensive than a conventional dietary pattern. Despite the perception that healthier foods are less affordable, these results suggest that cost may not be a barrier when modifying habitual intake and under tightly controlled trial conditions. The identification of specific food groups that may be a cost concern for individuals may be useful for tailoring interventions for CVD prevention for individuals and populations.
Authors: Chelsea M Rose; Shilpi Gupta; James Buszkiewicz; Linda K Ko; Jin Mou; Andrea Cook; Anne Vernez Moudon; Anju Aggarwal; Adam Drewnowski Journal: Soc Sci Med Date: 2020-09-11 Impact factor: 4.634