The proposed study aims to evaluate the impact on intestinal and oral microbiota composition and the metabolic effects of the daily consumption of a wheat-based fermented beverage, developed under the collaborative WHEATBIOME project, over a 4-week intervention period in healthy adults.

Inclusion Criteria:

• Body Mass Index (BMI) between 18.5 and 24.9 kg/m²
• Healthy status
• Willingness to consume a fermented wheat-based beverage daily for 4 weeks
• Capacity and willingness to provide written informed consent

Exclusion Criteria:

• Use of antibiotics and/or probiotics in the 12 weeks prior to the study
• Weight variation >10% within the last 3 months
• Participation in any clinical study or trial within the previous 12 months
• Diagnosed medical conditions, including: diabetes, liver disease (e.g., cirrhosis), pancreatitis or other malabsorption syndromes, gastrointestinal disorders (e.g., inflammatory bowel disease, celiac disease), history of weight-loss surgery (e.g., bariatric surgery), chronic respiratory, neurological, psychiatric, musculoskeletal, or other systemic conditions, eating disorders
• Diagnosed food allergies or intolerances
• Pregnancy or breastfeeding