Effect of <i>Bifidobacterium animalis</i> ssp. <i>lactis</i> GCL2505 on visceral fat accumulation in healthy Japanese adults: a randomized controlled trial

Abstract

Bifidobacterium animalis ssp. lactis GCL2505 (B. lactis GCL2505) is able to survive passage through the intestine and then proliferate, leading to an increase in the amount of gut bifidobacteria. In the present study, we evaluated the impact of B. lactis GCL2505 on abdominal visceral fat storage in overweight and mildly obese Japanese adults. This clinical study was a double-blind, randomized, placebo-controlled, parallel-group comparative trial performed for 12 weeks. Healthy Japanese subjects (N=137) with body mass indices ranging from 23 to 30 kg/m2 consumed either fermented milk containing B. lactis GCL2505 or a placebo every day, and then visceral and subcutaneous abdominal fat areas were measured by computed tomography as the primary endpoints. The number of fecal bifidobacteria was also measured. Visceral fat area, but not subcutaneous fat area, was significantly reduced from baseline at 8 and 12 weeks in the GCL2505 group, compared with the placebo group. The total number of fecal bifidobacteria was significantly increased in the GCL2505 group. These results indicate that B. lactis GCL2505 reduces abdominal visceral fat, a key factor associated with metabolic disorders. This finding suggests that this probiotic strain can potentially serve as a specific functional food to achieve visceral fat reduction in overweight or mildly obese individuals.

Impact of bacterial probiotics on obesity, diabetes and non-alcoholic fatty liver disease related variables: a systematic review and meta-analysis of randomised controlled trials

“…We identified 1934 records, from which we selected 986 individual abstracts and 161 potentially relevant articles for full review (figure 1). We identified 105 articles19 25–128 reporting data from 99 different research studies including 111 different randomised comparisons of probiotics versus control (further called randomised clinical trials [RCTs], see online supplementary table 1-2) with the following outcomes: BW (number of RCTs: k=58, n=3422 individuals, median=77.4 kg), BMI (k=68, n=4015, 28.2 kg/m²), WC (k=26, n=1583, 98.8 cm); BFM (k=27, n=1562, 27.8 kg), SAT and VAT (k=5, n=543, 192.4 cm² and 114.7 cm², respectively), FG (k=83, n=5188, 6.1 mmol), HbA 1c (k=28, n=1796, 6.3%), INS (k=63, n=3854, 11.0 mU/L), HOMA-IR (k=52, n=3513, 3.2), CRP (k=41, n=2376, 3.6 mg/L), TG (k=74, n=4461, 145.4 mg/dL), ALAT (k=26, n=1466, 38.6 IU/L), ASAT (k=23, n=1340, 36.1 IU/L) and GGT (k=14, n=816, 41.5 IU/L). The median duration of the follow-up was 8 weeks (range: 2–28 weeks), probiotics dose ranged from 10 7 to 10 12 CFU daily, and 43 trials were conducted in one country (Iran).…”

The Relationship between Habitual Dietary Intake and Gut Microbiota in Young Japanese Women

“…The mouse gut microbiota is also responsive to increased energy intake, with an increased abundance of Firmicutes and reduced abundance of Bacteroidetes (10)(11)(12). In addition, a number of research groups have reported that the supplementation with prebiotics and/or probiotics tends to increase the abundance of Bifidobacterium in humans and animals (13)(14)(15)(16).…”

Daily Intake of Paraprobiotic Lactobacillus amylovorus CP1563 Improves Pre-Obese Conditions and Affects the Gut Microbial Community in Healthy Pre-Obese Subjects: A Double-Blind, Randomized, Placebo-Controlled Study

“…Many studies have shown beneficial effects with regard to obesity prevention induced by the consumption of certain food ingredients, which is a strategy related to dietary habits [11][12][13]. In addition, probiotics, which constitute a food ingredient, are valuable for obesity prevention and improvement of the gut microbial conditions [14][15][16][17]. Probiotics are defined as "live microorganisms which, when administered in adequate amounts, confer a health benefit on the host" [18], and the modification of the gut microbial composition is one of the main mechanisms underlying the beneficial effects of probiotics on host health [19,20].…”