Inclusion Criteria:  Apparently healthy men and women; Age between 18 and 40 years; Body mass index (BMI) between 18.5 and 30 kg/m2 ; Having veins suitable for blood sampling via a catheter (judged by study nurse/ medical doctor).  Exclusion Criteria:  Any metabolic, gastrointestinal, inflammatory or chronic disease (such as diabetes, anaemia, hepatitis, cardiovascular disease),or having a condition or disease that may lead to an impaired immune system; History of gastrointestinal surgery or having (serious) gastrointestinal complaints; History of liver dysfunction (cirrhosis, hepatitis) or liver surgery; Kidney dysfunction (self-reported); Any use of medication that may suppress the immune system, this will be judged by the medical supervisor; Use of medication that may influence the study results, such as gastric acid inhibitors, laxatives, stomach protectors and drugs that can affect intestinal motility, this will be judged by the medical supervisor; Anaemia (Hb values <7.5 mmol/L for women and <8.5 mmol/L for men); Reported slimming, medically prescribed or other extreme diets; Use of protein supplements; Not willing to give up blood donation during the study; Current smokers; Alcohol intake ≥4 glasses of alcoholic beverages per day; Pregnant, lactating or wishing to become pregnant in the period of the study (self-reported); Abuse of hard drugs; Not having a general practitioner; Participation in another clinical trial at the same time; Being an employee of the department Food, Health & Consumer Research of Wageningen Food & Biobased Research or the department of Nutrition and Health of Wageningen University.