Physical activity increases the bioavailability of flavanones after dietary aronia-citrus juice intake in triathletes

► Flavanones excretion increased fivefold in triathletes versus control volunteers. ► Physical activity increases the bioavailability of flavanones. ► Changes in flavanone metabolites in 24-h hydrolysed urine samples. ► The main flavanone metabolites were glucuronides, sulfates, and sulfo-glucuronides.