1. Association between health literacy and dietary intake of sugar, fat and salt: a systematic review
- Author
-
Chiara Bertoncello, Tatjana Baldovin, Milena Sperotto, Giulia Grotto, Silvia Cocchio, Alessandra Buja, Laura Montecchio, Elisa De Battisti, and Vincenzo Baldo
- Subjects
Male ,0301 basic medicine ,Salt ,Psychological intervention ,Medicine (miscellaneous) ,Health literacy ,Health Promotion ,Review Article ,Behavioural Nutrition ,Chronic disease ,Eating ,03 medical and health sciences ,0302 clinical medicine ,Sugar intake ,Environmental health ,Humans ,Medicine ,030212 general & internal medicine ,Sodium Chloride, Dietary ,Sugar ,Fat ,Prevention ,030109 nutrition & dietetics ,Nutrition and Dietetics ,business.industry ,Dietary intake ,Public Health, Environmental and Occupational Health ,Intervention studies ,Health promotion ,Observational study ,Sugars ,business - Abstract
Objectives: To collect and summarise all current data from observational studies, generating evidence of the association between health literacy (HL) and the dietary intake of sugar, salt and fat, to analyse intervention studies on the promotion of an appropriate dietary intake of the above-mentioned nutrients and to ascertain whether HL moderates the efficacy of such intervention. Design: A systematic literature search of analytical observational studies on the association between HL and dietary intake of sugar, salt and fat was performed in Medline and Scopus databases. Intervention studies on the promotion of healthy nutrition that concerned the intake of sugar, salt and fat were also assessed. Results: Of the eight observational studies included in this review, five investigated dietary intake of sugar, one focused on salt, one assessed sugar and salt and one analysed the fat intake. The results of the five studies assessing sugar were mixed: three found an association between low levels of HL and a high sugar intake, one found this association only for boys and two found no evidence of any association. The two studies assessing salt and the one assessing fat found no evidence of any association with HL. One intervention study on the sugar intake concluded that HL was not a significant moderator of the intervention’s effectiveness. Conclusion: No evidence of any association between HL and salt and fat intake emerged, while for sugar, the results are mixed. More work is needed to better understand the moderating effects of HL on the outcomes of health promotion interventions.
- Published
- 2020
- Full Text
- View/download PDF