Daily quercetin supplementation dose-dependently increases plasma quercetin concentrations in healthy humans.

@article{Egert2008DailyQS,
  title={Daily quercetin supplementation dose-dependently increases plasma quercetin concentrations in healthy humans.},
  author={Sarah Egert and Siegfried Wolffram and Anja Bosy-Westphal and Christine Boesch-Saadatmandi and Anika E Wagner and Jan Frank and Gerald Rimbach and Manfred James Mueller},
  journal={The Journal of nutrition},
  year={2008},
  volume={138 9},
  pages={
          1615-21
        }
}
Our aim was to investigate the effects of an oral supplementation of quercetin at 3 different doses on plasma concentrations of quercetin, parameters of oxidant/antioxidant status, inflammation, and metabolism. To this end, 35 healthy volunteers were randomly assigned to take 50, 100, or 150 mg/d (group Q50-Q150) quercetin for 2 wk. Fasting blood samples were collected at the beginning and end of the supplementation period. Compared with baseline, quercetin supplementation significantly… 
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