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

George, Trevor, Niwat, Chutamat, Waroonphan, Saran, Gordon, Michael, Lovegrove, Julie and Paterson, Elaine (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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Abstract

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
Additional Information: II International Symposium on Human Health Effects of Fruits and Vegetables: FAVHEALTH 2007
Uncontrolled Keywords: antioxidants, carotenoids, vitamin C, vascular function
Subjects: C100 Biology
Department: Faculties > Health and Life Sciences > Applied Sciences
Depositing User: Ellen Cole
Date Deposited: 19 Apr 2013 12:20
Last Modified: 24 Oct 2017 11:26
URI: http://nrl.northumbria.ac.uk/id/eprint/12336

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