Glycaemic and Insulinaemic Responses After Consumption of FOS.

Inclusion Criteria: * Body mass index (BMI) between 18.0 and 25.0 kg/m² (included) * Ready to keep the same volume of physical activity and the same dietary habits during the study and particularly 24 hours before each visit * Be used to have breakfast * Non-smoker for at least 3 months * For the female participant: not being pregnant or breastfeeding and using efficient birth control * Signed the consent form * Able to follow the instructions of the study * Health insured * Accepted to be included in the National Registry for biomedical research Volunteers (Fichier VRB, Volontaires Recherches Biomédicales). Exclusion Criteria: * Fasting blood glucose over 6.1 mmol/L (1.10 g/L) (or diabetes treated or not) * Fasting blood cholesterol over 6.35 mmol/L * Fasting blood triglycerides over 1.70 mmol/L (or history of insulinoma) * Fasting blood insulin under 20 mU/L * Fasting HbA1c under 7% * History of hypercholesterolemia, hypertension, diabetes or glucose intolerance treated or not * History of dietary allergies or coeliac disease * History of digestive system disease susceptible to modify digestion or absorption like Crohn's disease * Somatic or psychiatric disorders * Renal insufficiency (kidney failure) * SGOT or ALAT over 52.5 U/L * Smoker * Consuming more than 3 alcoholic beverage a day * Weight varied 3 kg the last 3 months