Consumption of cruciferous vegetables and glucosinolates in a Spanish adult population.
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Dolores Chirlaque, M.
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AbstractOBJECTIVE: To assess the intake of glucosinolates and cruciferous vegetables among Spanish adults. DESIGN: Cross-sectional analysis of a prospective cohort study. SETTING: The Spanish cohort of the European Prospective Investigation into Cancer and Nutrition (EPIC). Subjects: We analysed data from 40 684 men and women aged 35-64 years from the EPIC-Spain cohort. The usual diet was assessed by means of the dietary history method, and glucosinolate intake was calculated using a published food composition database. RESULTS: The average intake of cruciferous vegetables was 11.3 g/day, accounting for about 5% of total vegetable consumption, whereas the daily intake of total glucosinolates was 6.5 mg, among which 35% were of indole type. The absolute intake of glucosinolates was in average higher in men than in women (6.8 vs 6.2 mg/day), whereas glucosinolate density per energy unit was higher in women's diet (3.4 vs 2.7 mg/4200 kJ). Northern regions consumed in average 36% more glucosinolates than Southern regions (7.3 vs 5.4 mg/day). There was a positive association of glucosinolate intake with body mass index, physical activity, educational level and an inverse relationship with alcohol consumption. CONCLUSIONS: Contrary to the pattern seen for total vegetable intake, our estimate of consumption of cruciferous vegetables, and hence of glucosinolates, is relatively low within Europe, which in turn is lower than in North America and several Asian populations.
CitationEur. J. Clin. Nutr. 2008, 62 (3):324-331
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