Intake of potentially anticarcinogenic flavonoids and their determinants in adults in the Netherlands

Flavonoids are strong antioxidants that occur naturally in foods and can inhibit carcinogenesis in rodents. Accurate data on population-wide intakes of flavonoids are not available. Here, using data of the Dutch National Food Consumption Survey 1987-1988, we report the intake of the potentially anti...

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Bibliographic Details
Published inNutrition and cancer Vol. 20; no. 1; p. 21
Main Authors Hertog, M.G.L, Hollman, P.C.H, Katan, M.B, Kromhout, D
Format Journal Article
LanguageEnglish
Published United States 1993
Subjects
ABSORCION DE SUSTANCIAS NUTRITIVAS
ABSORPTION DE SUBSTANCES NUTRITIVES
Adult
AGE
Aged
Anticarcinogenic Agents - pharmacology
ANTIOXIDANTES
ANTIOXYDANT
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
Diet Surveys
DIETA
EDAD
ENCUESTAS
ENERGIA
ENERGIE
ENQUETE
Female
FEMME
FLAVONOIDE
FLAVONOIDES
Flavonoids - pharmacology
Flavonols
HOMBRES
HOMME
Humans
Male
Middle Aged
Molecular Structure
MUJERES
NEOPLASMAS
NEOPLASME
Netherlands
PAISES BAJOS
PAYS BAS
REGIME ALIMENTAIRE
SEXE
SEXO
VARIACION ESTACIONAL
VARIATION SAISONNIERE
Netherlands
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Summary:Flavonoids are strong antioxidants that occur naturally in foods and can inhibit carcinogenesis in rodents. Accurate data on population-wide intakes of flavonoids are not available. Here, using data of the Dutch National Food Consumption Survey 1987-1988, we report the intake of the potentially anticarcinogenic flavonoids quercetin, kaempferol, myricetin, apigenin, and luteolin among 4,112 adults. The flavonoid content of vegetables, fruits, and beverages was determined by high-performance liquid chromatography. In all subjects, average intake of all flavonoids combined was 23 mg/day. The most important flavonoid was the flavonol quercetin (mean intake 16 mg/day). The most important sources of flavonoids were tea (48% of total intake), onions (29%), and apples (7%). Flavonoid intake did not vary between seasons, it was not correlated with total energy intake (r = 0.001), and it was only weakly correlated with the intake of vitamin A (retinol equivalents, r = 0.14), dietary fiber (r = 0.21), and vitamin C (r = 0.26). Our use of new analytic technology suggests that in the past flavonoid intake has been overestimated fivefold However, on a milligram-per-day basis, the intake of the antioxidant flavonoids still exceeded that of the antioxidants beta-carotene and vitamin E. Thus flavonoids represent an important source of antioxidants in the human diet
Bibliography:9425259
S30
Q04
S01
ISSN:0163-5581
1532-7914
DOI:10.1080/01635589309514267