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For a flat stomach - Scientific Research

Recent research on Probiotics, Prebiotics, and Bloating

A multi-strain probiotic preparation reduces symptoms of irritable bowel syndrome – September 2008 -  This double-blind placebo-controlled Clinical trial by Williams E, et al. treated 52 adults with two species of Lactobacillus and two species of Bifidobacteria for a period of 8 weeks.  Results showed that the probiotic supplements made considerable reductions in the severity of IBS symptoms.  Individuals on probiotics saw a reduction in days with pain, and reported a significant improvement in quality of life and satisfaction with bowel habits.

Lactobacillus acidophilus & body weight and leptin expression in rats - February 2008  - This study by Sousa et al at the University of Georgia, Athens, reported that rats administered with the probiotic Lactobacillus acidophilus showed weight loss in comparison to rats that were not given the probiotics. Injecting acidophilus supernatant into the Central Nervous Systems of the rats led to greater expression of leptin, a protein hormone that decreases the appetite and quickens the metabolism.

To read the entire study, see http://www.biomedcentral.com/1472-6882/8/5

Probiotics ease stress-related gut problems - January 2008 -  Leading probiotic company, Lallemand led a double-blind study that randomly assigned either probiotics or placebos to 75 volunteers between the ages of 18 and 60.  Participants given the probiotics Lactobacillus acidophilus Rosell-52 and Bifidobacterium longum Rosell-175 reported a significant reduction in abdominal pain and nausea or vomiting compared to participants given placebos.  Authors of the study at Lallemand commented that this probiotic supplement could work on the intestinal microbiota, the epithelial barrier, and the immune system in order to improve problems in the gut which were induced by stress.
Source: Nutrition Research (Elsevier) Volume 28, Issue 1, January 2008, Pages 1-5 "Probiotic food supplement reduces stress-induced gastrointestinal symptoms in volunteers: a double-blind, placebo-controlled, randomized trial" Authors: L. Diop, S. Guillou, H. Durand

Prebiotics help to avoid weight gain in adolescents - October 2007 - A study published in the Journal of Pediatrics and conducted at the Baylor College of Medicine stated that especially during puberty, an imbalance between energy intake and expenditure can cause weight gain and possible obesity.  The study, involving 97 healthy adolescents, gave participants either inulin/oligofructose (FOS) or a placebo for the period of a year.  Results showed less increase in BMI amongst the group given prebiotics, with considerably lower body weight and body fat mass in these participants compared to the controls.
Source – “Effect of Prebiotic Supplementation and Calcium intake on Body Mass Index.” Journal of Pediatrics, September 2007, Volume 151, Pages 293-298.

Clinical Research on Probiotics, Prebiotics and Bloating

Marteau, P. & Boutron-Ruault, M. C. (2002) Nutritional Advantages of Probiotics and Prebiotics. British Journal of Nutrition. Vol. 87 Suppl. 2 pp. S153 – S157

Paineau, D. (2007) Regular consumption of short-chain fructo-oligosachharides improves digestive comfort with minor functional bowel disorders. Br. J. Nutr. Aug 13:1-8 [Epub ahead of print]

Colecchia, A. (2006) Effect of a symbiotic preparation on the clinical manifestations of irritable bowel syndrome, constipation-variant. Minerva Gastroenterol. Dietol. 2006. 52:349-358

Tokunaga, T. (1993) Effects of fructooligosachharides (FOS) intake on the intestinal microflora and defecation in healthy volunteers.  Bifidus. (6) 143-150.

Houghton, L. A. & Whorwell, P. J. (2005) Towards a better understanding of abdominal bloating and distension in functional gastrointestinal disorders. Neurogastroenterology & Motility. Vol. 17 pp. 500 – 511

Zar, S, et al. (2002) Review Article: bloating in functional bowel disorders. Alimentary Pharmacology and Therapeutics. Vol. 16 pp. 1867 - 1876

Kumar, D. et al. (2005) Beneficial effects of probiotics and prebiotics on human health; Pharmazie Vol. 60 (3) pp.163 – 171

Gibson, G. R. et al (1995) Selective stimulation of bifidobacteria in the human colon by oligofructose and inulin. Gastroenterology. Apr;108(4):975-82.

Wallace, T.D. et al. (2003) Interactions of lactic acid bacteria with human intestinal epithelial cells: effects on cytokine production. Journal of Food Protection, 66, 3; 446-472.