Effect of Lactobacillus gasseri SBT2055 in fermented milk on abdominal adiposity in adults in a randomised controlled trial
2013
Kadooka, Yukio | Satō, Masao | Ogawa, Akihiro | Miyoshi, Masaya | Uenishi, Hiroshi | Ogawa, Hitomi | Ikuyama, Ken | Kagoshima, Masatoyo | Tsuchida, T. (Takashi)
Consumption of fermented milk (FM) containing a probiotic, Lactobacillus gasseri SBT2055 (LG2055), previously showed a reduction in abdominal adiposity in a randomised controlled trial (RCT) using FM with 10⁸ colony-forming units (cfu) of LG2055/g. However, whether the effectiveness is observed at lower concentrations, the recommended minimum or intermediate levels of probiotics (10⁶ or 10⁷cfu/g, respectively), remains to be examined. A multi-centre, double-blind, parallel-group RCT was conducted using 210 healthy Japanese adults with large visceral fat areas (80·2–187·8 cm²). They were balanced for their baseline characteristics and randomly assigned to three groups receiving FM containing 10⁷, 10⁶ or 0 (control) cfu LG2055/g of FM, and were asked to consume 200 g FM/d for 12 weeks. Abdominal visceral fat areas, which were determined by computed tomography, at week 12, changed from baseline by an average of − 8·5 % (95 % CI − 11·9, − 5·1; P< 0·01) in the 10⁷ dose group, and by − 8·2 % (95 % CI − 10·8, − 5·7; P< 0·01) in the 10⁶ dose group. Other measures including BMI, waist and hip circumferences, and body fat mass were also significantly decreased from baseline at week 12 in both groups; interestingly, the cessation of taking FM for 4 weeks attenuated these effects. In the control group, none of these parameters significantly decreased from baseline. These findings demonstrate that consumption of LG2055 at doses as low as the order of 10⁸cfu/d exhibited a significant lowering effect on abdominal adiposity, and suggest that constant consumption might be needed to maintain the effect.
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