Objective: To investigate the in vivo effects of quercetin following the ingestion of fried
onions. Design: Five healthy volunteers, three males and two females aged between 25 and …

Recent investigations suggest that the bioavailability of quercetin depends on the glycoside
moiety of the quercetin glycosides present in the diet. In this study, we compared the oral …

Antioxidants are substances that may protect cells from the damage caused by unstable
molecules such as free radicals. Flavonoids are phenolic substances widely found in fruits …

Flavonoids are natural antioxidants derived from plant pigments and commonly found in
agricultural produce such as fruits, vegetables, and also in beverages like tea and wine …

Metabolic diseases have become major public health issues worldwide. Searching for
effective drugs for treating metabolic diseases from natural compounds has attracted …

Quercetin is a promising food component, which can prevent lifestyle related diseases. To
understand the dietary intake of quercetin in the subjects of a population-based cohort study …

Quercetin, a member of the flavonoid class of polyphenol, is one of the most abundantly
distributed flavonoids found in various food sources such as fruits, vegetables, nuts, wine …

Flavonoids, dietary components in vegetables, fruits and beverages, may protect against
coronary heart disease, stroke and cancer. However, the bioavailability of these compounds …

Results: The serum quercetin concentrations were significantly higher in the subjects
consuming berries compared to the control group (P= 0.039 ANCOVA with repeated …

The nature of quercetin conjugates present in blood after consumption of quercetin
glucosides is still unclear. In this study, we analyzed plasma of volunteers that had …