The rationale for conducting the proposed study on the efficacy and safety of probiotic and fiber supplementation in obese individuals compared with an isolated dietary intervention stem from several key factors:

There is growing evidence suggesting that alterations in the gut microbiota composition (dysbiosis), may play a role in the development and progression of obesity. Studies have shown differences in the gut microbiota between obese and lean individuals, with specific microbial profiles associated with metabolic health.

Probiotics, beneficial microorganisms that confer health benefits when consumed, and dietary fiber, known for its role in promoting gut health, have both been implicated in modulating the gut microbiota and potentially influencing metabolic outcomes. However, the specific effects of probiotic and fiber supplementation in obese individuals warrant further investigation.

While dietary interventions are a cornerstone of obesity management, long-term success is often challenging to achieve. Many individuals struggle to sustain weight loss or experience weight regain over time. Therefore, exploring adjunct therapies such as probiotic and fiber supplementation could offer additional strategies for improving weight management outcomes.

Moreover, Evaluating the safety of probiotic and fiber supplementation alongside dietary interventions is essential particularly in obesity management where individuals may have underlying health conditions or be taking multiple medications. If probiotic and fiber supplementation are found to be effective and safe adjuncts to dietary interventions, they could be incorporated into obesity treatment protocols, offering patients additional options for achieving and maintaining weight loss.

Overall, conducting a randomized, placebo-controlled clinical trial to investigate the efficacy and safety of probiotic and fiber supplementation in obese individuals compared with isolated dietary intervention addresses an important gap in the current understanding of obesity management and has the potential to provide valuable insights into optimizing treatment approaches for this prevalent and complex condition.

90 days intervention results

Methods: Obese adults (Body Mass Index (BMI 30-<40 kg/m², aged 30-45, male: 46.15% female 53.85%) were randomly assigned to receive either the probiotic-fiber blend formulation or a placebo for 90 days, along with lifestyle counseling. Primary outcomes included body weight, BMI, waist/hip circumference, and body fat percentage. Secondary outcomes assessed biochemical parameters, digestive health, quality of life, perceived stress, and Metabolic Syndrome Severity Z (MetS Z) score. 104 participants completed the study.

Results: The probiotic-fiber blend formulation demonstrated statistically significant (p < 0.001) improvements compared to placebo, including reductions in body weight (12.01%), BMI (12.14%), waist circumference (9.64%), and hip circumference (9.63%) compared to placebo. Additionally, statistically significant reductions were observed in MetS Z score (54.02%), triglycerides (25.75%), and perceived stress (37.62%), along with a notable increase in HDL levels (16.55%). Significant improvements in digestive health and quality of life were also recorded, reinforcing the probiotic-fiber blend efficacy.

Conclusion: The findings provide robust evidence that the probiotic-fiber blend effectively improves anthropometric and biochemical markers in obesity. These results underscore the therapeutic potential of gut microbiome modulation in metabolic health. Further research should explore long-term effects, mechanistic pathways, and broader clinical applications.