Four-week ingestion of blood orange juice results in measurable anthocyanin urinary levels but does not affect cellular markers related to cardiovascular risk: a randomized cross-over study in healthy volunteers

Purpose Blood orange juice (OJ) is an important source of anthocyanins (ACN). The latter molecules are endowed with antioxidant activity and might thus modulate different cell function. Our aim was to investigate ACN absorption following a 1-month daily supplementation of blood OJ and their potential effects on cell markers of platelet and leukocyte activation and interaction.