Clinical Research Directory

Inclusion Criteria: For patients: * Patients aged ≥18 years; * Anorexia according to DSM-5 and CIDI (Composite International Diagnostic Interview); * Body mass index (BMI) (P/T2) \< 15; * Hospitalization for nutrition rehabilitation; * Covered by a health insurance; * Informed consent form signed. For Healthy Volunteers: * Aged ≥18 years; * 18.5 \< BMI (P/T2) \< 25; * Covered by a health insurance; * Informed consent form signed. Exclusion Criteria: For patients: * Patients no-responding all criteria of DSM-5 or CIDI scores; * Taken of antibiotic treatment 2 months / or laxativ 3 weeks before hospitalization; * Somatic comorbidity should perturb intestinal microbiota (Crohn's disease, diabetes and all other chronic inflammatory diseases); * Patients under guardianship; * Patients covered by french AME scheme. For Healthy Volunteers: * Any disease should perturb intestinal microbiota; * Recent ponderal variation; * Taken of antibiotic treatment 2 months or laxativ 3 weeks before hospitalization; * Under guardianship; * Covered by french AME scheme.