Depressed Mood and Anhedonia in Healthy Adults

Inclusion Criteria: * Adults aged between 20 and 65 years (limits included); * Body Mass Index (BMI) ≥19 and \< 30 kg/m²; * Considered healthy based on their medical history and clinical examination; * Subjects self-reporting anhedonia based on SHAPS questionnaire. Score ≥ 3 allows the inclusion; * Subjects with depressive mood disturbance based on POMS depression subscale. Score ≥ 4 allows the inclusion; * Able and willing to participate to the study by complying with the protocol procedures as evidenced by his dated and signed informed consent form; * Affiliated with a social security scheme; * Agreeing to be registered on the national file of the volunteers in biomedical research. Exclusion Criteria: * Suffer from mental health other than mild depressive or anxiety symptoms as measured by the Patient Health Questionnaire (PHQ-9). Volunteers with PHQ-9 score \>14 could not be included; * Having suicidal thoughts: score ≥1 at the item 9 of the PHQ-9; * Diagnosis of medical or psychiatric conditions including (but not limited to): * psychiatric disorder (other than mild-to-moderate depression symptoms, anhedonia or anxiety), * neurological disease (Parkinson's, Alzheimer's disease, intracranial haemorrhage, head or brain injury), * cancer/malignancy, * cardiovascular disease (other than hypertension), * Immunological disease, * endocrine disease (including diabetes or thyroid diseases, Chronic kidney disease, hematological abnormalities); * Smokers (more than 5 cigarettes per day); * Uncontrolled hypertension with medication (SBP ≥ 160mmHg or DBP ≥ 100 mmHg) or without medication (SBP ≥ 140mmHg or DBP ≥ 90 mmHg); * Taking drugs (anxiolytics, antidepressants, antihistamine drug more than 7 day/month) known to have an impact on mental health in the month preceding inclusion and / or likely to consume them during the study and/or Illicit drug; * Undergoing a psychotherapy in the month preceding inclusion or during the study; * Consuming more than 3 standard drinks of alcoholic beverage daily; * Weight change above 10% body weight within the past 6 months before inclusion; * Currently under prescribed diet regimen, whatever the reason; * Consuming foods supplement known to have an influence on mental health in the month preceding the inclusion and / or likely to take during the study; * Consuming more than 50g of chocolate/day; * For females: Pregnant or planning pregnancy during the study or breastfeeding; * Any intolerance or allergy documented or suspected to one of the components of the study products; * Taking part in another clinical trial or being in the exclusion period of a previous clinical trial; * Subject who would receive more than 4500 euros as indemnities for his participation in biomedical research within the 12 last months, including the indemnities for the present study; * Under legal protection (guardianship, wardship) or deprived from his rights following administrative or judicial decision; * Presenting a psychological or linguistic incapability to sign the informed consent and to answer the study questionnaires * Any other condition which in the investigator's opinion may adversely affect the subject's ability to complete the study or its measures or which may pose significant risk to the subject.