Probiotic Blend Shows Modest Benefit in Reducing Body Fat Alongside Diet and Exercise

What's new

New research indicates that a specific probiotic blend, Limosilactobacillus fermentum, may offer a marginal advantage in reducing body fat when combined with a structured weight loss regimen. The study, a randomized controlled trial, involved adults classified as overweight or obese who followed a calorie-restricted diet and engaged in regular walking. While both the probiotic and placebo groups experienced overall improvements in weight and body composition, the group receiving the probiotic demonstrated a slightly more pronounced decrease in body fat over a 12-week period [1].

The science behind it

This exploratory study enrolled 77 adults, with an average age of 35, comprising 50 women and 27 men. All participants were instructed to adhere to a weight-loss program for 12 weeks, which included a hypocaloric diet and a daily goal of 10,000 steps. In addition to this standardized intervention, participants were randomly assigned to receive either a daily supplement containing 6 billion colony-forming units (CFU) of a three-strain Limosilactobacillus fermentum probiotic or a placebo [1].

At the end of the 12 weeks, both groups showed positive changes in their body composition, indicating the effectiveness of the diet and exercise program. However, the group that consumed the Limosilactobacillus fermentum probiotic exhibited a statistically significant, albeit small, additional reduction in body fat compared to the placebo group. It is important to note that the probiotic did not yield clear improvements in overall body weight or measurements such as waist and hip circumference [1].

The rationale behind using probiotics for weight management often centers on their potential to modulate the gut microbiome. The gut microbiota plays a role in various metabolic processes, including energy extraction from food, fat storage, and inflammation, all of which can influence body weight and composition. Specific probiotic strains are thought to exert their effects by altering the balance of gut bacteria, potentially leading to favorable metabolic changes [1].

What it means in practice

For individuals looking to manage their weight and reduce body fat, this study suggests that incorporating a Limosilactobacillus fermentum probiotic might offer a small, additional benefit when combined with established weight loss strategies like caloric restriction and increased physical activity. However, it is crucial to understand that the probiotic is not a standalone solution for weight loss but rather a potential adjunct to a comprehensive lifestyle intervention [1].

Given that the study's findings regarding overall weight, waist, and hip measurements were not definitively improved by the probiotic, its practical impact on these broader indicators of health may be limited. The observed effect was primarily on body fat reduction. This implies that while the probiotic might contribute to a healthier body composition, its role in achieving significant weight loss or changes in body shape might be secondary to dietary and exercise interventions [1].

Caveats

This study is considered exploratory, and its findings should be interpreted with caution. The observed effects were modest, and the probiotic did not clearly demonstrate improvements in key metrics like overall body weight or waist and hip circumference. This suggests that while there might be a subtle benefit in body fat reduction, the overall impact on weight management is not substantial [1].

Furthermore, the efficacy of probiotics is often strain-specific, meaning that the results from this particular three-strain Limosilactobacillus fermentum blend may not be generalizable to other probiotic strains or combinations. More robust and larger-scale randomized controlled trials are needed to confirm these preliminary findings and to fully understand the mechanisms and clinical significance of Limosilactobacillus fermentum in weight management [1].

Source: [1] https://examine.com/research-feed/study/9gG2z9/