Evaluation of RSB11-HI Postbiotic Supplementation for Supporting Weight Management, Metabolic Wellness, and Quality of Life in Healthy Adults

Inclusion Criteria:

* Male or female, 18 to 55 years of age.
* Body Mass Index (BMI) between 23 and 32 kg/m² at screening.
* Able and willing to provide electronic informed consent.
* Willing and able to comply with all study procedures and scheduled assessments.
* Willing to maintain usual dietary habits and physical activity throughout the study period.
* Access to a smartphone, tablet, or computer with reliable internet connectivity to complete remote study assessments.
* Willing to refrain from initiating new dietary supplements, structured weight management programs, or significant lifestyle modifications intended to influence study outcomes during study participation.

Exclusion Criteria:

* Participation in another interventional clinical study within 30 days prior to screening.
* Current use of prescription medications intended for weight management.
* Current use of probiotic or postbiotic supplements that cannot be discontinued at least 4 weeks prior to enrollment.
* Antibiotic use within 4 weeks prior to screening.
* Pregnancy, planned pregnancy during the study period, or breastfeeding.
* Known allergy or hypersensitivity to any component of the investigational product or placebo.
* History of any gastrointestinal condition, metabolic disorder, or other clinically significant medical condition that, in the opinion of the investigator, could interfere with study participation or interpretation of study results.
* Any physical, psychological, or behavioral condition that, in the opinion of the investigator, would make participation unsafe or compromise compliance with the study protocol.