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. 2016 Apr 12;3:8. doi: 10.3389/fnut.2016.00008

Figure 1.

Figure 1

Metabolism of resveratrol-3-glucoside (piceid), the main metabolite of resveratrol present in plant foods, in human gastrointestinal tract; after piceid deconjugation, resveratrol-3-glucuronide, resveratrol-4′-glucuronide, resveratrol-3-sulfate, and resveratrol-4′-sulfate are the main phase II metabolites of resveratrol aglycone.