| Autor: |
Kontogianni MD; Department of Nutrition and Dietetics, Harokopio University, Eleftheriou Venizelou 70, 17671 Kallithea, Greece., Vijayakumar A; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK., Rooney C; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK., Noad RL; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK.; Cardiology Department, Belfast Health and Social Care Trust, Belfast BT9 7AB, UK., Appleton KM; Department of Psychology, Bournemouth University, Bournemouth BH12 5BB, UK., McCarthy D; Institute for Global Food Security, Queen's University Belfast, Belfast BT9 5DL, UK., Donnelly M; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK., Young IS; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK.; Institute for Global Food Security, Queen's University Belfast, Belfast BT9 5DL, UK., McKinley MC; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK.; Institute for Global Food Security, Queen's University Belfast, Belfast BT9 5DL, UK., McKeown PP; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK.; Cardiology Department, Belfast Health and Social Care Trust, Belfast BT9 7AB, UK., Woodside JV; Centre for Public Health, Queen's University Belfast, Belfast BT12 6BA, UK.; Institute for Global Food Security, Queen's University Belfast, Belfast BT9 5DL, UK. |
| Abstrakt: |
Mental ill health is currently one of the leading causes of disease burden worldwide. A growing body of data has emerged supporting the role of diet, especially polyphenols, which have anxiolytic and antidepressant-like properties. The aim of the present study was to assess the effect of a high polyphenol diet (HPD) compared to a low polyphenol diet (LPD) on aspects of psychological well-being in the Polyphenol Intervention Trial (PPhIT). Ninety-nine mildly hypertensive participants aged 40-65 years were enrolled in a four-week LPD washout period and then randomised to either an LPD or an HPD for eight weeks. Both at baseline and the end of intervention, participants' lifestyle and psychological well-being were assessed. The participants in the HPD group reported a decrease in depressive symptoms, as assessed by the Beck Depression Inventory-II, and an improvement in physical component and mental health component scores as assessed with 36-Item Short Form Survey. No differences in anxiety, stress, self-esteem or body image perception were observed. In summary, the study findings suggest that the adoption of a polyphenol-rich diet could potentially lead to beneficial effects including a reduction in depressive symptoms and improvements in general mental health status and physical health in hypertensive participants. |
