This cross-over study (double 5x5 latin square design) includes 10 young healthy subjects (5 males, 5 females).These subjects are studied in two different situations: a situation of good chewing efficiency, and a situation of disturbed chewing. This second situation is simulated by the wearing an occlusal appliance interfering with chewing and experimentally leading to poor masticatory efficiency. The overall study is conducted in two distinct protocols. The first protocol "Food bolus" is dedicated to the study of the rheological properties of the food bolus including analysis of the release of amino acids and bioactive peptides (secondary objective). The second protocol "Bioavailability" is the study of the bioavailability of bioactive compounds target (main objective). Each volunteer participates in both protocols. The sessions, with or without occlusal appliance, are randomized individually for each subject. Each subject is his own control and confounding factors related to individual variability of mastication and the general functioning of the digestive tract are therefore minimized.