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Effects of chronic and acute fruit and vegetable juice consumption on cardiovascular disease risk factors

George, T.W. , Niwat, C. , Waroonphan, S. , Gordon, M.H. , Lovegrove, J.A. ORCID: and Paterson, E. (2009) Effects of chronic and acute fruit and vegetable juice consumption on cardiovascular disease risk factors. ISHS Acta Horticulturae , 841. pp. 201-206. ISSN 0567-7572

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Diets low in fruit and vegetables are reportedly responsible for 2.7 million deaths annually from cardiovascular diseases (CVD) and certain cancers. A daily fruit and vegetable intake of five 80 g portions is recommended for chronic disease prevention. However, in the UK, average adult consumption is less than three portions. It is suggested that fruit juice should only count as one portion. However, fruit juices are a beneficial source of phytochemicals. The preliminary results of two randomized, controlled, crossover, dietary intervention studies investigating the effects of chronic and acute consumption of fruit and vegetable puree and juice based drinks (FVPJ) on bioavailability, antioxidant status, vascular reactivity, and risk factors for CVD are reported. In the first study, 39 volunteers consumed 200 ml FVPJ, or fruit-flavoured control, daily for six weeks. In the second study, 24 volunteers consumed 400 mL FVPJ, or sugar-matched control, on the morning of the study day. Blood and urine samples were collected throughout both studies and real-time measurements of vascular tone were performed using laser Doppler imaging with iontophoresis. Overall, the studies showed that the fruit and vegetable puree and juice based drink increased dietary phytochemicals. There was a trend towards increased vasodilation following both acute and chronic fruit juice consumption. Measurements of antioxidant status, oxidative stress and other cardiovascular disease risk factors are currently being determined.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13389
Uncontrolled Keywords:antioxidants, carotenoids, vitamin C, vascular function
Additional Information:II International Symposium on Human Health Effects of Fruits and Vegetables: FAVHEALTH 2007

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