Document Type

Dissertation - University Access Only

Award Date

2010

Degree Name

Doctor of Philosophy (PhD)

Department / School

Nutrition, Food Science, and Hospitality

Abstract

The purpose of this research study was to determine the flavonoids intake levels by Americans and their potential health effects. Food intake data was from the National Health and Nutritional Examination Study (NHANES). The flavonoid intakes were calculated using the USDA phytonutrients database. Correlation analysis and multiple regression analyses were used to determine the relationships between flavonoid consumption and several health indictors. The study showed that the total average intake of flavonoids was about 150 mg/day. The consumption of the anthocynaidin subclass was the lowest compared with other subclasses. The study also revealed that females consumed slightly higher amount of flavonoids than males. The results also indicated that individuals who consumed more malvidin, cynidin, and petunidin had higher HDL cholesterol levels, especially among female subjects. These three flavonoids are in the subclass of anthocyanidins. This study provides a solid foundation for future health-related studies on flavonoids. While all the subclass of flavonoids might be important to human health, the emphasis should be on anthocyanidins.

Library of Congress Subject Headings

Flavonoids -- Health aspects

Nutrition -- United States

Format

application/pdf

Number of Pages

104

Publisher

South Dakota State University

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